Posts Tagged ‘methotrexate’

Over-the-Counter Remedies Vitamin E
Vitamin E, once considered a potential super-nutrient, has fallen out of favor as a preventive for heart disease or cancer viagra comercial with vcr . But back when it still looked ever so promising, a group of Italian dermatologists conducted a study to see if vitamin E could improve symptoms of eczema ecstacy lexapro . 295 It was single-blind; that is, the patients did not know who was getting the active treatment, but the doctors did sources side effects zoloft . The patients ranged in age Vita
This fat-soluble vitamin has been disappointing in studies of cancer or heart disease prevention stopped procardia labor . The natural form of vitamin E used in this study (alpha-tocopherol at 400 IU daily) was surprisingly effective in reducing the lesions and itching of eczema ibuprofen urticaria .
Side effects: Minor digestive upset is possible, but unlikely prescription plans that will cover valtrex . Downside: There has been only one study of this therapy for eczema biaxin pack description . Although vitamin E is inexpensive and relatively nontoxic, more studies to substantiate the benefit would be desirable does lipitor cause skin rash .
Cost: Approximately $3 to $8 a month
from 10 to 60 years old, and all had itching that had not been well controlled by their previous therapies how does naproxen sodium work .
The study lasted 8 months, and over the course of that time, the skin of fewer than 10 percent of the people taking vitamin E (400 IU daily) got worse pseudoephedrine hci 60mg . The skin of more than three-fourths of those on placebo had worsened antabuse breath odor . Conversely, almost half of the patients on vitamin E had excellent improvement, compared to only 1 (of 46) of those on placebo baby cannot keep prednisolone down . The investigators noted that the patients who had good results clinically also had marked reduction in the IgE levels that indicate allergic arousal of the immune system wat is lithium . They concluded that vitamin E might prove to be an excellent therapy for atopic dermatitis sie affects of drug diovan . Unfortunately, there are no other studies to confirm or refute these findings de effects of norvasc .
Topical Creams
Over the years, we have learned of a number of surprising remedies for itchy eczema facts and comparison of zyrtec . One is the old-fashioned moisturizing cleanser Noxzema west palm beach lasix center . Many people have written to say they had success easing the itching and even clearing up the rash after applying Noxzema to their eczema cellcept batten disease . Of course, nothing works for eczema all the time separating codeine from promethazine . But Noxzema is relatively low risk remeron tab . We suspect the herbal oils it contains may contribute to its effect clinical trial exelon . According to the manufacturer, camphor, menthol, and eucalyptus have given Noxzema “its redolent signature since 1914 buy accutane online .”
O fosinopril sodiun . I just had to let you know the success I’ve had with your suggestion to use Noxzema for eczema will lasix help with blood test . My 3year-old son has suffered with this skin condition on his legs and feet for 2 years caffeine gum addiction .
We treated it successfully with the prescription drug Elidel, but after learning of safety concerns, we checked with his doctor and stopped using it metronidazole for catas .
I tried many moisturizing creams to soothe his skin, but he cried and said they hurt levothyroxine purchasing . I started using Noxzema the day I read your article, and there were no tears 5 how sildenafil works .
His skin responded quickly and after 3 weeks almost aft traces of eczema are gone viagra vs kamagra . This advice has changed my young son’s life clozapine adverse event reporting post marketing .
A zoloft memory loss . We are certainly pleased to learn of your success toradol breastfeeding side effects . Lore has it that the name Noxzema was given after the product helped an early customer “knock” her eczema wellbutrin anger .
• 0 •
The mainstay of eczema treatment is a topical corticosteroid order tadalafil no prescription . In most cases, the doctor will prescribe a mild cream for
*** Noxzema
The brand now includes a number of different cleansers, but the one you want is the original, in the blue jar viagra paperweight . Apply it to the affected areas like you would a moisturizing cream olmesartan medoxomil . The herbal ingredients, camphor, menthol, and eucalyptus, may be helpful against itch, and the base cream is a good moisturizer allergic reaction to levaquin levaquin medication .
Side effects: Uncommon mucinex with clonidine . Discontinue use if it irritates the skin evista comprimidos .
Downside: There’s no scientific proof that this product will help eczema buy clonidine without prescription .
Cost: Approximately $4 to $6 for 14 ounces
Topical Hydrocortisone I Percent
Topical corticosteroid lotions, creams, and ointments are the mainstay of eczema treatment any difference between methocarbamol flexeril . This is the one that is available without a prescription, because it is less potent than prescription products carisoprodol china production . clozapine vs clozaril . It probably will help mild eczema sertraline hcl 100mg side effects . It may not be strong enough for moderate or severe conditions tetracycline 500mg strength .
The best way to use thislotion or cream is to apply it conscientiously for 3 to 7 days at a time rechargable aa lithium ion . Then take a break for several days amiodarone thyroid australia .
Side effects: Uncommon, but burning, itching, irritation, or dryness could occur where the product is applied does aygestin stop your period . Downside: Long-term use could lead to thinning of the skin novo levofloxacin side effects . This is a small -risk with the over-the-counter creams, but it should be kept in mind ibuprofen slow release r .
Cost: Approximately $3 to for a 1-ounce tube
use on the face and a more potent one for use elsewhere on the body carbatrol versus lamictal . Hydrocortisone 1 percent is available without a prescription and can be used for eczema cis diagnosis lipitor . We don’t suggest longterm use without checking in with the doctor, though lawsuits lithium heart failure valve damage . Even though the nonprescription cream is not very strong, it could still cause some thinning of the skin if it were used for many months flagyl use in cats .
Those who would prefer to avoid hydrocortisone cream may want to check out a product called CamoCare Soothing Cream order ivermectin merck online . It contains extract of chamomile flowers in an emollient base and has been helpful against eczema in one stud y gatifloxacin ophthalmic solution .296 Apparently, it has an effect comparable to low-dose hydrocortisone cream (0 effects side zyrtec .25 to 0 prednisone indications for use .5 percent), although it does not contain any steroid armada 4100 4200 lithium battery .
Another nonprescription ointment that has been put through a clinical trial is a homemade mixture of honey, beeswax, and olive Oil diamox hearing loss .297 This study was not as rigorous as we would like—not by a long shot how much caffeine in go fast . And honey, beeswax, and olive oil might just be too messy to be practical naltrexone and sertraline . But the Dubai dermatologist who ran the trial found that it had benefit for about 80 percent of the patients with eczema soma cruz genya arikado yaoi . That is almost the same as the percentage who respond well to topical steroid creams compazine box . So if you are in the mood for an experiment, get Soothing Cream
CamoCare his cream apparently was developed in Germany and is better known in Europe than in the United States natural sources of penicillin . German chamomile (Matricaria chamomille) contains an lithium grease plastic lubricant .oil called bisabolol that has been shown to have powerfulanti-inflam-matory action, comparable to that of the drug indomethacin imipramine 150 mg . That might explain its improvement of skin irritation drug recall china methotrexate .
Side effects: Some people are allergic to chamomile precose 50mg . Since individuals with atopic dermatitis may be especially susceptible to developing allergies, discontinue use immediately if the rash gets worse common side effects of paxil .
Downside: We know of only one study of CamoCare for eczema prevacid and children . In addition, it is relatively expensive is hydrochlorothiazide .
Cost: Approximately $10 to $14 for a 1-ounce tube lexapro withdrawal migrains .
out the blender and mix together equal amounts of honey, beeswax, and olive oil maximum dose topiramate 1600mg per day . Then see what it does for you psms and spironolactone . It should have no side effects, other than being sticky president ceo tricor systems inc . And it should not be overly expensive what is piroxicam .
Prescription Options
Doctors are most likely to prescribe some form of corticosteroid (cortisone-like) cream or ointment for eczema bipolar zyprexa . That’s because around 80 percent of patients with atopic dermatitis seem to respond well to these prescription creams pseudoephedrine extraction method . Fewer than 40 percent of those patients improve on a placebo cream or ointment 298 That’s why topical corticosteroids are so widely used avapro high blood pressure medicine .
If your doctor has given you a prescription fora corticosteroid, be sure to get the details on how to use it ivax pharm prozac . Using too strong a preparation on the face can have negative consequences zoloft theraputic level . The skin may become thin and tear or bruise easily, and blood vessels may become prominent guidelines for warfarin therapy . In fact, some people with eczema need two different formulations—a fairly strong one for hard-to-treat areas like the hands and a relatively mild one for eczema on the face fentanyl interaction with ultram . Keep in mind, too, that overuse of topical corticosteroids can thin the skin goldline enteric asprin 81mg .
People sometimes worry about steroid side effects from such creams jshua and abilify . It’s not impossible that side effects typically as-
**** Topical Steroids
One or more topical steroid preparations—a cream or an ointment—will probably be the dermatologist’s first choice to control eczema ld50 asprin . It helps significantly in most cases manufacturer information on prednisone .
Follow the directions carefully soma heightened climax . The cream may need to be applied two or three times daily diclofenac sodium 75mg 3ml injection . Do not put a strong steroid on the face, or any steroid cream near the eyes is kamagra illegal uk . Ask your doctor about “pulsing” the use of cream—applying it for 3 to 7 consecutive days and then stopping for several days 17 b estradiol . Adults may be able to use such products for just a few days a week levaquin and colstridium .
Side effects: Stinging, burning, irritation, itching, peeling Downside: Long-term use or application over a large part of the body, especially under a close covering, could thin the skin, lead to marks on the skin, or (most serious) result in side effects similar to those from oral prednisone lithium 450 mg 900 mg .
Cost: Depends upon the specific steroid the doctor selects cephalexin dose for dogs . These drugs can be expensive lamisil and exacerbation of psoriasis . Inquire about a generic version, which may cost much less amoxicillin and indications and uses .
sociated with steroid use might occur, but it is very unlikely unless the area treated is large and has been covered with some kind of bandage or “occlusive dressing withdrawel from zoloft .” Be very careful in applying this kind of treatment barringer wc and minocycline . It may indeed help the skin, but it must not be overdone prevacid for oral suspension ingredients .
Atopiclair
In 2005, the FDA approved a nonsteroidal cream for eczema excellent results taking effexor . Atopiclair is a prescription product that contains a number of botanical extracts in an emollient base taylor lithium scale . Like CamoCare, it contains bisabolol, but Atopiclair also contains a vitamin E—like compound, a licorice root derivative, and an extract of grapeseed, along with shea nut butter celecoxib evaluation . A gel containing licorice extract had earlier shown promise for treating atopic dermatitiS testosterone mesterelone .299
Elidel and Protopic
The frustration of trying to control eczema, a condition that may not respond to the usual anti-inflammatory treatments, has led doctors to explore other treatment options cholesterol pravachol . The de-Clair
This nonsteroidal cream is significantly better than a simple moisturizer at alleviating itch and reducing rash gabapentin and erection problems . It should be applied two or three times a day shell shrimp cytoxan .
Side effects: Local irritation
Downside: People allergic to any of the ingredients, including nuts, should avoid Atopiclair does citalopram .
Cost: Approximately $85 to $95 for lMgram tube
velopment of immune-modulating treatments to prevent the rejection of transplants led some dermatologists to think about modulating the immune reaction at the level of the skin carisoprodol 2444 imprint . After all, eczema does seem to be linked to an immune reaction gone a bit haywire, comparable to hay fever allegra versace 2007 . It turns out that there are two compounds that can be applied topically to dampen the immune response allegra of ri . They are Elidel (pimecrolimus) and Protopic (tacrolimus) seroquel xr versus seroquel .
Parents of children with eczema were very pleased to have these effective treatments made available so they would not have to rely so heavily on potent corticosteroid creams to keep their youngsters comfortable meloxicam taken with tylenol . They were alarmed, however, when the FDA issued a warning that these immune-suppressing drugs might increase the risk of children developing cancer, especially lymphoma order tadalafil ups online . Such cancers are rare in kids, so it will probably be years before it is possible to assess how serious this potential risk really is no prescription german pharmacy prednisone . But weighing red, itchy skin against a potentially lethal disease suggests that these drugs should be used only when other treatments have not worked bupropion high .
Another topical cream for treating eczema is called MimyX cream diflucan used to treat tenia capitas . It is available by prescription, but does not contain a steroid homotaurine campral gabapentin . Clinical trials showed that it can reduce the size of areas affected by eczema and extend the period between flare-ups seroquel too sedating for bipolar . Side effects appear to be local, such as irritation or itching viagra lawsuit . The manufacturer, Stiefel Laboratories, suggests that MimyX could be used on a regular basis without danger prednisone for t12 to l2 fracture . Because it was approved relatively recently, however, there are no good long-term safety data hydroxyzine withdrawl .
This immune-suppressing cream is significantly better than a simple moisturizer asprin 110mg . It is approved for use in adults and in children older than age 2 gabapentin and migraine .
Side effects: Local irritation, burning, stinging, itching, infections, seizures
Downside: Long-term use is discouraged because there is a possibility that it increases the risk of cancer cheap no prescription tramadol . When application of the cream is discontinued, however, a high proportion of patients regress to pretreatment condition,
Cost: Approximately $65 to $80 for a 30-gram tube of 0 phytosterol testosterone .03 percent ointment, the only strength approved for use in children
Other Approaches
A number of other possible treatments may have some benefit for people suffering from atopic dermatitis generic ultram tramadol 50 mg . Some of them are pretty straightforward and well accepted, whereas others are on the wacky side find how to use viagra . Here’s a brief summary:
1 terbutaline ol1 inhalation compounding pharmacy . Heliotherapy can you take zoloft with lorpressor . This means: Get some sunshine on your skin tramadol ultram hci . Sunburn is bad, of course, but a couple of weeks of moderate sun exposure seems to make eczema better combivir indications . 300 This almost sounds like a prescription for a tropical vacation! Be forewarned, though, that some of the medicines used to treat eczema could make skin more sensitive to sunburn clomid and ovulating pain twin . This is a worry particularly with Elidel and Pro-topic paxil cr 125 mg .
2 trazodone and insomnia . Ultraviolet light therapy carisoprodol b carisoprodol . This probably explains why sunshine is beneficial jeffery m allegra . Exposure to ultraviolet A in the dermatologist’s office can help alleviate eczema symptoms treatment rheumatoid arthritis sulfasalazine . Stubborn cases may improve with the addition of a psoralen gel or bath before the light exposure generic drugs atorvastatin . This is similar to a standard treatment for psoriasis buy cheap kamagra . The dermatologist will probably recommend it if she thinks it will be helpful caverta side effect . Although it is usually administered in the office or hospital, a portable unit used at home can be equally effective concerta adhd caffeine adhd theadhdspecialist com .- 301
3 dilantin and lasiz . Balneotherapy digoxin and elderly . Immersion in salts derived from the Dead Sea, followed by exposure to ultraviolet B, can be helpful, especially if eczema is chronic and widespread interactions of imitrex and celexa . This effect was first observed in people actually bathing in the Dead Sea, but it is no longer necessary to go there lithium cr123a . Some dermatologists offer this type of therapy in their treatment suites clindamycin doxycycline bordatella . One big drawback is that it takes a lot of time zoloft seroxat side effects .302,303
4 order sumatriptan mail . Hypnotherapy claritin acrylic coffee cup price . Both hypnosis and self-hypnosis can help 3 people cope with eczema, especially with its terrible itch excessive testosterone acne .
5 ditropan $4 . Music bioidentical testosterone cream for women . Listening to Mozart—but, oddly enough, not to Beethoven—reduced the size of a wheal that rose on the skin in response to a specific allergen challenge in people with eczema and latex allergy allegra’s window songs . 305 This is probably the most peculiar of the therapies we have come across, but the study used quite objective measures (IgE production, size of wheal) that presumably are not easily manipulated availability of viagra in new zealand .
Conclusions
Eczema, or more precisely atopic dermatitis, is an itchy skin condition that is often chronic testosterone and vaginal cancer . Besides the itch, skin affected by eczema may develop a rash with liquid-filled bumps cymbalta lower dosages . Skin-fold areas, such as the back of the knees, seem to be especially susceptible to the rash ct angiogram lopressor san antonio . Eczema is often accompanied by generalized dry skin, and the patient may also have asthma or hay fever domperidone in infants .
There’s no cure for eczema, although sometimes it does go away for a period of time levothroid interactions . No treatment works all the time or for everyone, so people are understandably on the lookout for something that might work better than what they have already tried 18 v lithium ion . Eczema is quite common in young children, and parents need to be especially vigilant in weighing the benefits against the risks of various therapies they might use for their kids nexium and polyps .
• Avoid prolonged exposure to water or any irritating chemicals, including soap or detergent caffeine birth defect . After washing hands or bathing, apply a moisturizer within 3 minutes of patting the skin dry acomplia price .
• A person with a documented food allergy that makes eczema worse should avoid that food paxil vs effexor . Eggs may be a culprit for young children what’s anastrozole .
• Probiotics can help in some instances 1967 neonatal exposure to depo provera . Look for a high-quality supplement with viable organisms price cefpodoxime compare . Lactobacillus GG and L pravastatin 20mg . fermentum have done well in studies aleve competitor .
• Fatty acid supplements providing gamma-linolenic acid (such as evening primrose oil, borage oil, or black currant seed oil) help some individuals, but have not performed well in clinical trials insomnia paxil cr . One exception is hemp seed oil, although the data on it are limited to one study topamax and glaucoma . It might be worth a try effect of ibuprofen on blood pressure .
• Cut table sugar and simple starches out of your diet vasotec blood pressure medicine . A low-glycemic-index approach might be worth trying, though will
there is no scientific evidence that it wicontrol eczema female zantac de .
• According to anecdotal reports, eating salsa may ease eczema symptoms increase of depression with zoloft . If you like spicy foods, go for it can lamictal help depression .
• Drinking 4 cups of oolong tea daily was shown in one study to help eczema that wasn’t responding to other treatments albuterol and nebulizer . It is easy and nontoxic, so it would be worth a try woman on viagra .
• Vitamin E capsules did very well in one study of people with atopic dermatitis caffeine levels pop . Check with your doctor first if you are a smoker or at high risk of heart disease; some large studies suggest vitamin E might increase your risk of serious complications claritin dose . For others, there is very little risk in a short-term personal trial to see if it helps your skin tobacco and depakote .
• Apply Noxzema—the original formula in the blue jar—to the affected areas clomid use after laproscopy . The herbal ingredients, camphor, menthol, and eucalyptol, may soothe itching what is citalopram hydrobromide . Be alert for increased irritation, though avandia image .
• Over-the-counter hydrocortisone cream (0 promethazine hcl suppository .5 or 1 percent) may help if the eczema is mild lithium etek .
• CamoCare Soothing Cream is available without a prescription and may ease itching, redness, and inflammation toradol opiod .
• Blend up a batch of honey, beeswax, and olive oil for a homemade salve that may help celexa anxiety depression . It sounds sticky, though yaz spironolactone .
• Use prescription steroid creams according to the physician’s instructions effects of gabapentin and alchohol . Don’t use a potent steroid on the face, or for too long a time health and wellness caffeine health product . “Pulsing” the dose—applying the cream for 3 to 7 days straight, then not using it for a time—may help zyrtec over the counter patenet . Ask your doctor azithromycin pharmacy .
• Drugs such as Protopic (tacrolimus) or Elidel (pimecrolimus) may be helpful as back-up treatment if the steroid creams stop working or don’t work well enough long term use of carisoprodol .

flumazenil A benzodiazepine antagonist used in anaesthesia to reverse the sedative effects of benzodiazepines.
Dose: 200µg initially by i.v. injection, with subsequent doses of 100 pg at I -minute intervals, up to a maximum of I mg. Further doses may be given by i.v. infusion if drowsiness returns, as the action of flumazenil is brief. ( Anexate).
flunisolide A potent corticosteroid used locally in the more severe forms of hay fever and other nasal allergies.
Dose: 1)), nasal inhalation, 50pg (2 sprays), 2 or 3 times a day, continued for 2-3 weeks, or longer if required. (Syntaris).
flunitrazepam A benzodiazepine with a hypnotic action used for the short-term treatment of insomnia.
Dose: 0.5-2 nig. Side-effects include drowsiness, ataxia and visual disturbances. (Rohypnol). See page 152 and Table 22.
fluocinolone A topically active potent corticosteroid. Used as cream, ointment or gel (0.00625-0.025%) in severe, inflamed, corticosteroid-responsive skin disorders. Excessive application should be avoided. (Synalar).
fluocino”ide A potent locally effective anti-inflammatory steroid similar to fluocinolone, used as cream, ointment or lotion (0.05%). (Metosyn).
fluocortolone A locally acting corticosteroid used as cream or ointment (0.25%) in severe, inflamed skin conditions. (Ultralanum).
fluorouracil A cytotoxic agent used in the palliative treatment of carcinoma of the breast and gastrointestinal tract and other solid tumours.
Dose: 15 ingft orally or by i.v. infusion weekly, up to a total dose of 12-25 g. Side-effects include alopecia and dermatitis, but haeniatotoxicity, severe gastrointestinal disturbance and haemorrhage may limit treatment. Fluorouracil is used locally as a 5% cream (Efudix) in malignant skin lesions.
fluoxetine An antidepressant that acts by selectively inhibiting the uptake of serotonin. Given in single daily doses of 20 mg. Dose: 60 mg daily are given in bulimia nervosa. Side-effects are gastrointestinal disturbances, dizziness and anorexia; rash is an indication of withdrawal. It should not be used with other drugs that influence serotonin uptake. (Prozac). See page 128 and Table 11.
flupenthixol A tranquillizer similar to fluphenazine and used in the treatment of schizophrenia with apathy and withdrawal. It also has an antidepressant action.
Dose: 6-18 ing daily initially, with subsequent adjustment according to need. It may cause some restlessness and insomnia. Dose by deep i.m. injection, 20-40 mg every 2-4 weeks. Dose in depression: 500 pg 31ngdaily.The side-effects are similar to those of chlorpromazine. (Depixol; Fluanoxol). See page 168 and Table 30.
fluphenazine An antipsychotic drug with the actions and uses of chlorpromazine, but with reduced sedative and anticholinergic side-effects, although extra-pyramidal symptoms may be increased. Dose: 2- 10 mg initially in schizophrenia adjusted up to 20 ing daily. In severe anxiety states 1-4 mg. For depot treatment, 12.5-100 ntg of the decanoate by deep i.m. injection every 12-14 days according to response. (Modecate; Moditen). See page 168 and Table 30.
fluorescein An orange-red dye; solutions have a strong green fluorescence. Used as eye drops (1-2%) for detecting corneal lesions, as areas of cornea denuded of epithelium stain green.
fluorometholone A corticosteroid used as eye drops (0.10%) for inflammatory conditions of the eye. (FML).
flurandrenolone A potent locally acting corticosteroid used as a cream or ointment (0.0125%) in severe skin disorders not responding to other therapy. (Haelan). An adhesive tape is used for small resistant dermatoses.
flurazepam A benzodiazepine hypnotic for
the short-term treatment of insomnia.

flurbiprofen A non-steroid anti-inflammatory drug with the actions, uses and side-effects of naproxen. It is used in the relief of pain and inflammation in rheumatoid and arthritic conditions, and in other
nitisculoskeletal disorders.
Dose: 150 mg daily, after food, increased tip to 300 mg daily if necessary. Suppositories of 100 nig are available. Care is necessary in peptic ulcer and in aspirin-sensitive asthmatic patients. (Froben). See page 165 and’I'able 29.
flutamide An androgen blocking agent that inhibits the action of androgens on target organs. It is used in advanced prostatic cancer not responding to other drugs, usually in association with goserelin or related agents.
Dose: 750 mg daily. Side-effects include gynacconiastia, and liver function should be checked. (Drogenil). See page 122 and Table 8.
folic acid A constituent of the vitamin B group. It is essential for cell division and the growth and development of normal red blood cells. The main therapeutic use is in the treatment of megaloblastic anaemias due to folic acid deficiency. Dose: 5 ing daily for 4 months initially;
ing weekly may be adequate after the haematological response has been obtained. Sometimes given with anti-epileptic drugs, as long-term therapy may cause a folic acid deficiency. Small doses are present in many iron preparations to prevent the inegaloblastic anaemia that may occur in later stages of pregnancy. It must not be used alone in pernicious anaemia, as it cannot prevent the degeneration of the central nervous system associated with that disease.
folinic acid A methotrexate antidote. It is given ai the end of a course of methotrexate to reduce the toxic effects on normal cells and in methotrexate-overdose. Dose: up to 120 mg over 24 hours by i.m. injection (or i.v.), with 60 mg orally for another 48-72 hours.
49
fluticasone A corticosteroid of increased potency. Used as a metered dose pump for the prophylaxis and treatment of seasonal allergic rhinitis and hay fever.
Dose: 100 pg (2 sprays) into each nostril mice a day in the morning. Maximum reliefmay not be obtained for 3-4 days. Systemic absorption extremely low. (Nixonaw.
fluvastatinV An inhibitor of the enzyme I I N46-CoA-reductase used in the treatment of hyperlipidaemia.
Dose: 20-40 ing daily in the evening. (Lescol). See page 146,’I'able 20 and atorvastatin, provastatin and ‘inivastatin.
fluvoxamine An antidepressant that acts by inhibiting the central re-uptake of serotonin. It is used mainly for maintenance treatment during depressive illness. Dose: 100-300 mg, daily in the evening; a steady plasma level is normally reached within 10-14 days. Side-effects after initial nausea may include somnolence, constipation and agitation. It should not be used with other drugs that increase scrotonin uptake, or with aminophylline or theophylline. (Faverin). See page 128 and Table 11.
follitropin A recombinant form of the follicle stimulating hormone used in some forms of infertility. It is given by injection in doses dependent on the degree of ovarian response. (Puregon).
formaldehyde A powerful but toxic germicide used mainly in the disinfection of rooms, and as’formalsaline’ (5% in normal saline) for the preservation of pathological specimens. Warts have been treated with a 3% solution.
formestane An inhibitor of aromatase, the enzyme that converts androgens to oestrogens. It is used in advanced postmenopausal breast cancer, as it has a cytotoxic action mediated by causing an oestrogen deficiency state.
Dose: 250 mg by deep intragluteal injection at intervals of 2 weeks, with variations of the injection site. Side-effect are rash, pruritus and occasional vaginal bleeding. Mentaron). See page 122 and Table 8.
foscarnet An antiviral agent for the treatment of sight-damaging cytomegalovirus retinitis in AIDS patients as an alternative to ganciclovir.
Dose: 60 mg/kg daily by i.v. infusion for 2-3 weeks, with subsequent infusion at a rate dependent on renal function. (Foscavir). See page 144 and,ribic ig.
fosfestrol A water-soluble derivative of stilboestrol. It is metabolized by the enzyme acid phosphatase to liberate stilboestrol in tissues rich in that enzyme, and so it is of value in prostatic carcinoma.
Dose: 1)), slow i.v. injection, 600-1200 rni, daily for 5 days or more. Oral maintenance dose: 120-360 nig daily. perinea) pain is a side-effect. (I lonvan). See page 122 and Table 8.
fosfomycin A phosphorus-containing antibiotic used mainly for infections of the lower urinary tract.
Dose: 3 g nightly after voiding the
bladder. Also used prophylactically before prostatectomy. Rash, nausea and diarrhoea are side-effects. (Monuril).
fosinopril An ACE inhibitor indicated in hypertension when standard therapy is ineffective or unsuitable.
Dose: 10 mg daily initially, adjusted after •1 weeks up to 40 nig according to need. It is eliminated by the liver as well as the kidneys, and may have some advantages in renal impairment. (Staril). See ACE inhibitors, page 148 and Table 21.
framycetin An antibiotic resembling neomycin in general properties. Used in eye infections as drops or ointment 0.5%. (Soframycin).
friar’s balsam Contains benzoin, storax, aloes, balsam of tolu. Official name Compound Tincture of Benzoin. See benzoin.
frusemide A loop diuretic with a powerful and intense action of short duration. Often effective in conditions no longer responding to thiazide diuretics.
Dose: 20-40 mg daily or on alternate days, or 20-50 mg i.ma or i.v. Much larger oral doses, varying front 250 nie, up to a single maximum dose of 2g may be required in renal failure and oliguria. Side-effects include nausea, diarrhoea and cramp. Masix). See page 141 and’Fable 18.
fusidic acid See sodium fusidate.
gabapentin An anticonvulsant used in the L11111101 of the partial seizures of epilepsy, although the mode of action is not yet clear. Dose: 300 mg initially, slowly increased to 1.2 g daily according to need. Drowsiness, tremor and weight gain are some side-effects. Withdrawal is with slowly reduced doses over 2-3 weeks. (Neurontin). See page 136 and Table I5.
gallamine A synthetic non-depolarizing (competitive) muscle relaxant.
Dose: 80-120 mg initially i.v. with small subsequent doses according to need and response. The action of the drug may be terminated by the injection of neostigmine, 2.5-5 mg, together with atropine, 0.5-1 mg. (Flaxedil). Now used less frequently as tachycardia is a side-effect.
gamolinic acid A derivative of linoleic acid present in evening primrose oil. It is said to be of value in atopic eczema.
Dose: 320-480 mg daily. It is also used in mastalgia (breast pain) in doses of
240-320 mg daily, but the response is slow (8-12 weeks). (Epogam; Ffarnast).
gammaglobulin See immunoglobulin.
ganciclovir An antiviral agent similar to aciclovir, but more toxic. It is used only in sight- and life- threatening infections with cytomegalovirus (CMV) in immunocompromised patients.
Dose: by i.v. infusion, 5 mg/kg every 12 hours for 14-21 days, with mainte nance (lose of 5 mg/kg daily. Later oral dose 3 g daily. The solution is very alkaline, and injection requires care. Regular blood counts are essential. (Cvnievene). See page 144 an(Frable 19.
G-CSF human urnan granulocyte colony stimulating factor. See filgrastim and lenograstim.
fusafungine An antibiotic with anti-inflammatory properties used for upper respiratory tract infections.
Dose: as aerosol spray 123 jig 5 boles  day. (Locabiotal).
Gee’s linctus A soothing cough linctus containing camphorated tincture of opium, oxymcl of squill and syrup of tolu.

A-Z Principal Drugs (antidepressants - astemizole)
antidepressants The drugs used in the treatment of depression fall into two main groups, the so-called tricyclic antidepressants and the monoamine oxidase inhibitors (MA01s). (Unrelated drugs include lithium carbonate, used only for the prophylaxis and treatment of manic depressive illness.) The tricyclic group, which also includes sonic other compounds with a similar action, appear to act by blocking the neuronal uptake of central transmitters such as noradrenaline and serotonin. They are more widely used than the MAOIs because they are more generally effective, and interact less extensively with other drugs and certain foods. The tricyclic drugs are widely used in endogenous depression, particularly when sleep disturbances are present, but the onset of action is slow, and improvement may not commence until after 2-4 weeks of treatment. Extended therapy is usually required to avoid the risk of a relapse, and patients should be advised accordingly. Sonic tricyclic antidepressants, such as amitriptyline, have a sedative action of value when anxiety is a complicating factor, whereas a less sedating drug such as imipramine may be useful in patients exhibiting apathy and withdrawal. Some of the side-effects, such as dryness of the mouth, are linked with their anti-
cholinergic activity, but tolerance may develop with continued treatment. They also influence the cardio-vascular system and may cause arrhythmias, tachycardia and hypotension, and may interfere with the action of some antihypertensive drugs, although the response to beta-blocking agents is unaffected. Care is necessary in cardiac disease, and with the elderly initial doses should be low. The use of tricyclic antidepressants in epileptic patients may result in a lowering of the convulsive threshold. See page 128 and Table 11.
antidiabetic agents Diabetes mellitus is a deficiency disease due to a lack of insulin, and is characterized by an excessive level of glucose in the blood and urine. Treatment is either replacement therapy with daily injection of insulin, or orally by hypoglycaemic agents such as chlorpropamide. Such agents act by stimulating insulin secretion and release by the beta-cells of the pancreas, and are ineffective in the absence of such cells. See page 132 and Tables 12 & 13.
anti-D(Rh.) immunoglobulin An ininiurioglobulin that is given to a rhesus-negative mother to prevent her forming anti-bodies against fetal rhesus-positive cells which may pass into the maternal circulation during childbirth or abortion and which, in a later pregnancy, could cause haemolytic disease.
Dose: 504) units Lin. within 60-72 hours of delivery or abortion. Doses of 1250 units are given prophylactically. It is of no value it’given after anti-D antibodies have been formed. The inimunoglobulin has also been given after the transfusion of rhesus-incompatible blood. (Partobulin).
antiemetics Nausea and vomiting may be due to several causes, including stimulation of the chemoreceptor trigger zone in the reticular formation of the brain. Man), antiemetics have some degree of central activity, and in some cases their action may be mediated by blocking the effects of dopamine on the trigger zone. Effective drugs include some antihistamines and sonic phenothiazine-based tranquillizers such as prochlorperazine. The alkaloid hyoscine is widely used in travel sickness. More powerful drugs such as domperidone, metoclopramide, nabilone and ondansetron, are of value in the control of the severe nausea and vomiting induced by cytotoxic drugs. The use of antiemetics in early pregnancy requires great care, and is seldom essential.
antiepileptics See anticonvulsants, page 136 and’] able 15.
antihistamines Drugs such as promethazine are of value in conditions associated with the release of histamine from mast cells, such as hayfever, rhinitis, urticaria, pruritus, insect bites and stings. They are also useful in drug allergies. Some antihistamines also have antienietic properties, and are useful in travel sickness. Although all antihistamines have the same basic action, the degree and duration of response and the severity of side-effects may vary. Some antihistamines pass easily into the central nervous system arid are more likely to cause drowsiness. Others may have reduced anticholinergic properties, and cause less dryness of the mouth and blurring of vision. Care is necessary in epilepsy, glaucoma, hepatic disease or prostatic enlargement. See page 110 and Table 2.

antihypertensive agents See page 148 and Table 2 1.
anti-inflammatory agents See non-steroidal anti-inflammatory drugs (NSAIDS) and page 165 and Table 29.
antimetabolites Cytotoxic drugs that appear to act by combining irreversibly with cell enzymes, and so prevent cell division. Methotrexate and mercaptopurine are examples. See page 122 and Table 8.
dermatology and pruritus as oily calamine lotion. Arachis oil enema is used to soften impacted faeces.
argipressin A synthetic form of vasopressin.
artificial tears Some chronic sore eye con clitions may occur in rheumatoid arthritis, and may be due to tear deficiency. Solutions of itypromellose or polyvinylalcohol, sometimes referred to as’artificial tears’, are useful as a bland lubricant to replace the tear deficiency. (Isopto; Hypotears).
antimuscarinic agents See anticholinergic agent” page 160 and Table 26.
antineoplastic agents Anti-cancer drugs. See page 122 and ‘rabic 8.
antipsychotic agents See pages 117 & 1(,8, and Tables 5 & 30.
antitetanus immunoglobulin aulloglobulin obtained from plasma is used in injured patients who have not previously been immunized, and when tetanus is a definite risk. Dose: 250 units jan. A course of tetanus vaccine should also be commenced,
antitubercular agents See rifampicin, page 170 and I able 31.
antiviral agents See page 144 and Table 19.
anxiolytics See page H 7 and Table 5.
apomorphine A morphine derivative formerly used as a powerful emetic, but now considered to be too toxic. Occasionally used in the hospital treatment of parkinsonism. (Britaject).
apraclorildine A clonidine derivative used as eye drops I 9A, to control intraocular
pressure during ophthalmic surgery. Some absorption may occur, so care is necessary in severe cardiovascular disease. (lopidine).
aprotinin An inhibitor of the proteolytic enzyme plasmin, obtained from bovine lung tissue. It is used in the severe haemorrhage due to hyperplasminaemia.
Dose: 500 000-1 000 000 units by i.v. infu.ioll. (Trasylol).
arachis oil Groundnut or peanut oil. It has
emollient properties, and is used in
ascorbic acid (vitamin C) Present in many citrus fruits. Deficiency is not uncommon in the elderly receiving inadequate diets. Severe deficiency causes scurvy, once the bane of seafarers.
Dose: for prophylaxis 25-75 mg daily; therapeutic dose 200-500 mg daily. Doses of 4 g daily are given for acidification of the urine. Claims that vitamin C prevents colds are unproven.
asparaginase Crisantaspase. See page 122 and Table 8.
aspirin (acetylsalicylic acid) Widely used as a mild analgesic and anti-inflammatory agent, often in association with other drugs such as paracetamol and codeine. Dose: 1.2-4 g daily, but in acute rheumatoid conditions doses of 4-8 g daily have been given. Long-term treatment with (loses of 75 mg daily are given liar the prophylaxis of cardiovascular disease. Side-effects include gastric irritation with some blood loss, hyperventilation, and bonitos, with the risk of deafness, may occur with high doses. Aspirin may cause rash and bronchospasm in asthmatic and other sensitive patients. As aspirin is now thought to be associated with Reye’s syndrome, the drug should not be given to children under 12 years of age unless specifically indicated. Aspirin may increase the effects of certain hypoglycaemic and anticoagulant drugs.
astemizole An antihistamine with an extended action and reduced sedative effects.
Dose: Wring once daily before food, and must not be exceeded. Higher doses may cause cardiotoxic side-effects such as ventricular tachycardia. Arrhythmias may follow combined treatment with many other drugs. (Hismanol; Pollen-ese). See page 110 and Table 2.

Various anti-allergy drugs
An allergic reaction is a lengthy, complex process, and the various anti-allergy drugs all work on different stages of that process. That is why it often makes sense to use several different drugs for the same allergic condition: they each tackle the problem in their own way.
Steroids (see p. 140) intervene at a very late stage, quelling the inflammation that follows on from an allergic reaction. Using a steroid is rather like calling the fire brigade to put out a fire, whereas using an antihistamine (see p. 138) is like having fire-proof doors, to prevent the fire spreading at an early stage. Cromoglycate-type drugs (see below) intervene at an even earlier stage. They are like basic fire prevention - teaching children not to play with matches, or fitting smoke detectors.
Anti - leukotnene drugs (see p. 149) work at roughly the same stage of the process as anti-histamines but tackle an entirely different aspect of the allergic reaction.
Cromoglycate-type drugs
These drugs are also referred to as mast-cell stabilisers or mast-cell Mockers.
There are three drugs in this group, sodium cromoglycate (also spelled cromoglicate), nedocromil sodium, and lodoxamide. All operate at an early stage of the allergic reaction, stopping it before it actually starts. They stabilise the outer membrane of the mast cells (see box on p. 12), which prevents the allergic response from occurring.
Some common brand names
Common brand names of cromoglycate-type drugs include:
inhalers - Cromogen Easi-Breathe, Intal, Tilade
eye drops - Hay-Crom, Opticrom, Rapitil, Vividrin, Viz-on nose sprays - Rynacrom, Vividrin
capsules - Nalcrom
This is a far more satisfactory way of dealing with an allergic reaction than trying to tackle it after the reaction has occurred. But from a purely practical point of view, it has a drawback. I order to work at all, these drugs must reach the mast cells in advance of the allergen. They are of very little use if taken after the allergic reaction has begun.
For those who are taking cromoglycate-type drugs on a regular schedule, several times a day, it is very important to be conscientious about taking them on time. This maintains the protective effect of the drug, without any gaps.
If you are using these drugs on an ‘as-needed’ basis, you should take them 30 minutes before an allergen is encountered. or 30 minutes before a bout of exercise, if they are being prescribed for exercise-induced asthma. (Note that children sometimes respond differently, getting protection from these drugs immediately.)
The effect of these drugs takes time to build up. You should take them regularly for at least four weeks before deciding whether they are helping you or not.
One point in favour of cromoglycate-type drugs is that they are extremely safe, with few or no side effects in most people. Sadly, they do not work for everyone. A fairly high percentage of children respond well to them, but the response rate is much lower for adults. Nevertheless, adult allergy sufferers, especially those who need steroids to control their symptoms, should always be given the opportunity to try out these drugs. When cromoglycate-type drugs do work, they are very effective and almost always trouble-free, so they are a good alternative to steroids.
Both sodium cromoglycate and nedocromil sodium are available in inhaler form for asthma (see p. 157). Sodium cromoglycate is also available as nose drops for hayfever and other nasal allergies.
All three drugs are available as eye drops. Recent evidence suggests that sodium cromoglycate drops are less effective than the other two, particularly for the treatment of severe allergic conjunctivitis (inflammation of the eye).
Sodium cromoglycate is available in capsule form for food allergy. Note that these capsules are of very limited value in food allergy, and are certainly not a substitute for food avoidance. They do reduce sensitivity a little and can sometimes be helpful for those with multiple food allergies (see p. 67).
Side effects
There are no serious side effects at all for nedocromil sodium. cromoglycate can, very rarely, cause joint pain and swelling. An allergic reaction to the drug itself is even more uncommon. Stop taking the drug and see your doctor promptly if either of these occurs.
The only other side effects that have occasionally been reported are headache, nausea and vomiting. None of these indicates any damaging effect by the drugs – they are all minor side effects.
Eye drops containing these drugs may cause stinging and burning when inserted, but this is a minor side effect and usually wears off. Flushing and dizziness have sometimes been reported with lodoxamide eye drops.
Nose drops may also cause local irritation. This could be due to the drug itself, in which case it is a minor side effect. Alternatively, the irritation may be due to the preservative used or some other non-drug ingredient (see box on p. 33).
Occasionally cromoglycate nose drops cause bronchospasm – contraction of the airway muscles – but this tends to wear off quite quickly. Bronchospasm can also occur when cromoglycate-type drugs are inhaled (see p. 157).
Anti - leu kotriene drugs
These drugs, which have a set of very specific effects (see p. 159), were originally designed to treat asthma. Their potential for treating other allergic diseases is currently being explored:
•    Several studies show that they work well for perennial allergic rhinitis brought on by allergens such as house-dust mite. They also have some effect on hayfever, but standard treatment (such as antihistamines plus a steroid spray for the nose) is more effective.
•    They are especially useful for both rhinitis and asthma in patients suffering from triad (see box on p. 28). Research shows that they also reduce asthmatic reactions to very small test doses of aspirin, but they don’t give protection against anaphylaxis brought on by normal doses.
•    They have also been used successfully in cases of chronic urticaria and for some patients with delayed pressure urticaria. It seems plausible that they would also be helpful for chronic urticarla linked to aspirin sensitivity.
•    Preliminary trials suggest that these drugs might be useful in atopic eczema. Some studies show a very good response that allows a reduction in steroid creams.
•    Montelukast works very well for eosinophilic gastroenteritis and eosinophilic oesophagitis (see p. 72), according to some new studies.
For side effects of these drugs see pp. 159-60.
Anti-IgE drugs
Since the antibody IgE (see box on p. 12) is such a crucial player in allergic reactions, developing drugs that disable this antibody should help allergy sufferers. The first such drug is omalizumab (brand name Xolair) which was licensed for use in the United States in 2003. It is expected to become available in Britain some time in the next few years.
Omalizumab binds to IgE antibodies and stops them from interacting with mast cells, so blocking any allergic reaction. The drug is given as a ‘depot injection’, just under the skin, every 2-4 weeks. It is gradually released from the injection site and moves around the body in the blood, mopping up IgE molecules.
At present, omalizumab is used for severe hayfever and for people with asthma who are not responding well to the usual treatments. It is only worth using if there is clear evidence that allergies play a part in the asthma. Patients who use omalizumab are often able to reduce their dose of inhaled steroids – and they suffer fewer serious asthma attacks and have better lung function. Some patients can even stop using steroids completely.
Other anti-IgE drugs are in the pipeline. Pilot studies show that one works very well for peanut allergy: after just four injections, sensitivity to the allergen falls sharply, reducing the risk of anaphylaxis from traces of peanut eaten accidentally.
More powerful anti-allergy drugs
Occasionally people with severe allergies, who are on constant high doses of steroid tablets, or who fail to respond to steroids, need treatment with powerful anti-inflammatory drugs, such as methotrexate or cyclosporin. These suppress the immune system, and extremely careful monitoring for side effects is needed.
Adrenaline (epinephrine)
Anyone who has suffered anaphylactic shock (see p. 58) should be carrying a special syringe, called an auto-injector, loaded with adrenaline. The injector is very simple to operate and is designed for emergencies. Most allergy sufferers, even children, can give themselves the injection – or a parent or other adult can give it.
Some asthmatics, and those with food allergy who suffer swelling of the throat, may be given adrenaline in inhaler form as well (see pp. 155-6). This can be useful as an additional treatment but it’s definitely not a substitute for an injector.
See pp. 98-9 for instructions on using adrenaline in a crisis.
Wherever you go, take your injector with you. Always keep it close at hand: you need to be able to use it within minutes of the allergic reaction starting. You may be unable to speak (and therefore unable to ask someone else to fetch it) quite soon after the attack begins. The injector must never be refrigerated. It can also be damaged by sunlight and excess heat.
If you live in the countryside or in an area with a poor ambulance sevice, or if you are going camping or hiking somewhere remote, ask your doctor for a second injector, or one that can deliver multiple injections. Also ask about the maximum number of injections that can be given, and never exceed this total. Some doctors believe everyone should have two injectors, just in case the first dose doesn’t do the trick and help is slow in coming.
It is vital that you are shown exactly how to use the auto-injector. Canadian researchers discovered that only one in four
Some common brand names
Common brand names of adrenaline preparations include: auto-injectors – Anapen, EpiPen
inhalers – AsthmaHaler Mist, Bronkaid, Epiphrine
health professionals got the technique correct when demonstrating how to use an auto-injector In this study, pharmacists were much the best as regards accurate instructions. Dummy injectors are useful for training purposes and most pharmacies have them.
When the adrenaline auto-injectors expire, they can be very useful for practising with, or for showing a new baby-sitter or teacher – practise on an orange or grapefruit.
If you are taking beta-blockers (e.g. for a heart condition or anxiety), adrenaline may not have much effect.
Heavy daily use of beta-2 relievers for asthma (see p. 152) will also make adrenaline less effective when you need it.
Side effects
The important side effects of adrenaline involve the heart. Anyone with a heart condition should be given special advice in advance by their doctor about using adrenaline. The same goes for people with diabetes, hyperthyroidism or high blood pressure, and anyone taking tricyclic anti-depressants. There are quite a few minor side effects from adrenaline, such as anxiety, trembling, nausea. sweating, dizziness and cold extremities. These soon wear off.
Drugs that can make you worse
Aspirin and its relatives have a very bad effect on some people with rhinitis and/or asthma (see box on p. 151). Unfortunately, recent research shows that paracetamol is not safe either. It makes asthma more likely to develop in those who do not yet have the disease, and increases the severity of asthma symptoms for those who do. Unlike aspirin, paracetamol affects everyone, because it lowers the levels of a natural antioxidant, called glutathione, which the body makes to protect the lungs from oxidants. The greatest effects are seen in people who take paracetamol regularly (once a week or more), but even an occasional dose makes some difference.
All the other drugs that can make you worse are prescription drugs, and your doctor should be alert to the dangers. But doctors are overworked and sometimes forget, so it is sensible to know about the risks for yourself. If you have any doubt about the drugs you are taking, ask a pharmacist.
Beta-blockers are a major hazard for people with allergies. They can make the airways contract, and can bring on a serious asthma attack. They also make anaphylaxis more likely in someone who already has allergic reactions (see p. 59) and they increase the risk of a severe reaction to
immunotherapy (see p. 166) or skin-prick tests (see p. 91). Beta-blockers are prescribed for high blood pressure, angina and other heart problems, migraine and thyroid disease. There are alternative drugs in all cases. Sometimes asthma develops in people who have been taking beta-blockers for years. The beta-blockers are not responsible for this, but once asthma has begun, they will make symptoms worse. Eye drops for the treatment of glaucoma may also contain beta-blockers and can have a bad effect on asthmatics.
ACE inhibitors, used for heart conditions, may cause a cough and airway narrowing. They may also increase the risk of a severe reaction to immunotherapy.
Female hormones affect asthmatics, so taking the contraceptive pill or hormone replacement therapy (HRT) may make asthma worse. Progesterone-only contraceptive pills tend to cause fewer problems.
The drug isoniazid (INH), prescribed for tuberculosis, makes the body far more susceptible to histamine in foods (see p. 200).
An allergic reaction to a specific drug (e.g. penicillin) can also occur in some people, resulting in urticaria, or even anaphylactic shock.
Aspirin sensitivity
Aspirin sensitivity is not an allergic reaction, because neither IgE nor mast cells are involved. What causes this problem is a metabolic abnormality — a malfunction in one aspect of the body’s chemistry. The details of this are very complicated: you may want to skip the next three paragraphs and
simply read about how to cope with the problem.
The exact nature of aspirin sensitivity is still far from clear, but it seems to involve a relatively poor production of prostaglandins, combined with a plentiful production of leukotrienes. Both these substances are messenger chemicals which, broadly speaking, promote inflammation. But the details of their pro-inflammatory activities differ. It seems that, ideally, the body should have a harmonious balance between the two, and an imbalance produces problems.
Both prostaglandins and leukotrienes are manufactured from certain fats that are found in the diet. These fats, the raw materials, are worked on initially by two different enzymes — one that leads to the production of prostaglandins and another that leads to the production of leukotrienes.
If one of these enzymes is defective, it may mean that the other is oversupplied with raw materials, resulting in a serious imbalance between prostaglandins and leukotrienes. In those with aspirin sensitivity, or at risk of developing aspirin sensitivity, the enzyme that produces prostaglandins seems to be defective.
Even in the absence of aspirin, this imbalance in the production of prostaglandins and leukotrienes causes problems. It leads to symptoms such as chronic urticaria (see p. 51) or rhinitis, nasal polyps and asthma (a cluster of symptoms that is commonly called triad — see box on p. 28).
Taking aspirin can make the imbalance between prostaglandins and leukotrienes even worse in a person with this underlying abnormality. Aspirin exerts its painkilling effects by disabling the main prostaglandin-making enzyme — the enzyme that is already defective.
When someone with aspirin sensitivity takes aspirin, they may suffer worsening asthma, a severe asthma attack or — the worst-case scenario —collapse. This is a potentially fatal reaction, similar to anaphylaxis, requiring emergency medical treatment (see p. 101).
The greatest puzzle about aspirin sensitivity is why it often takes so long to develop in someone who already has the symptoms of triad —indicating the basic metabolic abnormality. It may be as much as 20 years from when someone has their first triad symptoms to when they begin reacting badly to aspirin.
If you have triad symptoms already, but no aspirin sensitivity yet, what should you do? Unfortunately, there are no safe tests for aspirin sensitivity at present — taking a small dose of aspirin and seeing what happens is very hazardous. It is probably best to assume that you are going to become sensitive to aspirin at some stage, and avoid all aspirin and aspirin-like drugs. Caution is the best plan here because aspirin sensitivity can come on very suddenly, and be life-threatening the very first time it occurs. Note
that some triad sufferers have polyps and rhinitis but no asthma until they actually develop aspirin sensitivity — a dose of aspirin suddenly brings on their first asthma attack plus other symptoms of aspirin sensitivity.
Avoiding aspirin itself is not difficult, but aspirin-like drugs pose more of a problem. Every year there are a number of deaths from these drugs. Some cases occur because a busy doctor momentarily forgets that a patient should not take these drugs. The drugs that need to be avoided are all known as non-steroidal anti-inflammatory drugs (NSAIDs), COX-1 inhibitors or COX-2 inhibitors. However you will not see any of these names on the packet. These drugs are very widely used for pain relief (e.g. in headache and backache remedies such as Nurofen), for the treatment of arthritis, and for several other inflammatory diseases.
There are dozens of non-steroidal anti-inflammatory drugs available, and many are sold under several different brand names. The list grows every year, as new drugs or new brands are launched. The only way to avoid these drugs is to be very cautious:
•    When buying any cold- or flu-remedies, painkillers, medicines for sprains or sports injuries (including those you apply directly to the skin), headache tablets or migraine tablets, always buy them at a chemist’s shop rather than a supermarket, and check with the pharmacist that they do not contain aspirin or aspirin-like drugs.
•    Be cautious also about remedies for an upset stomach. A few (e.g. Alka-Seltzer) contain aspirin.
•    Don’t take any drugs unless you are 100% sure of what they contain. Remember that the ingredients of a familiar brand name can sometimes change — read the label every time.
•    When a doctor prescribes any new drug, always mention that you are sensitive to aspirin, or that you have triad symptoms. Alternatively, check with the pharmacist when the prescription is filled.
•    Aspirin-free painkillers almost always contain paracetamol, a drug which can cause a severe reaction (similar to the collapse induced by aspirin itself) in about 5% of those with aspirin sensitivity. If you are taking paracetamol for the first time, start with half a tablet. Be sure that, for the next 2-3 hours, you have a way of getting to hospital quickly should you start to feel ill. (Note that paracetamol has another entirely separate effect, increasing the severity of asthma, and it is best not to take it too often — see box on p. 150.)
Avoiding all aspirin-like drugs will prevent you having anaphylaxis or severe attacks of asthma. Unfortunately, triad symptoms will not go away however careful you are about avoiding aspirin.
It is well worth trying the new anti-leukotriene drugs (see p. 149), especially if you have aspirin-induced asthma. They seem to help with triad symptoms by curtailing the activities of leukotrienes and so redressing the balance between leukotrienes and prostaglandins.