Monday, July 20th, 2009
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 .
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Tuesday, May 19th, 2009
Theophylline
Theophylline-type drugs are also known as xanthines or methylxanthines. These drugs are chemically similar to caffeine. They cannot be inhaled, so are taken as tablets or syrup. They start working about 30 minutes after being taken and their effects last for 6-8 hours. Slow-release preparations take 90 minutes to start working, but they last 12-24 hours, and are therefore useful for nocturnal asthma.
In Britain, doctors generally regard theophylline-type drugs as reliever drugs (see p. 152), but rather risky ones whose use is only justified for people with severe asthma. They are given, as an additional treatment, to asthmatics who are not responding well to the usual drug programme (see p. 160). Unfortunately, fairly high doses are needed for theophylline-type drugs to act as relievers, i.e. to reverse bronchospasm. There is a very narrow margin between such a dose and one that causes major (and sometimes dangerous) side effects.
Such side effects usually occur when the doctor is still trying to work out the correct dose – this varies from one person to another, so prescribing theophylline-type drugs is no easy matter. Once you are established on a safe dose (and provided your general health and your intake of alcohol, nicotine and medicinal drugs does not vary – see p. 158) you can usually continue taking theophylline without serious side effects.
In the United States, many doctors also give theophyllinetype drugs, at much lower doses, to people with mild asthma. At these low doses they do not act as relievers, but they have a slight anti-inflammatory effect and therefore act as preventers. The risk of toxicity is much less. Taking low doses of theophylline allows people with mild asthma to reduce their use of beta-2 relievers. However, inhaled steroids are usually more effective in this role, and are the preferred treatment outside the United States.
Side effects
Typical side effects include nausea, vomiting, stomach pains, diarrhoea (sometimes with blood), headache, anxiety, restlessness, insomnia, dizziness, and a pounding heart or irregular heartbeat.
Any side effect of these drugs should be taken seriously and reported to your doctor as soon as possible. If you cannot get an appointment quickly, it may be best to stop taking the drug before seeing the doctor, as long as you have other drugs to control your asthma. Call your doctor for advice.
It is remarkably easy to overdose when taking these drugs at higher doses (see p. 157). Such overdoses can be fatal. The symptoms include repeated vomiting, shaking, feeling unusually hot, needing to urinate frequently, severe thirst, maniacal behaviour, and irregular heartbeat (palpitations). Delirium and convulsions may occur shortly afterwards, so get hospital treatment urgently if you have any of these symptoms.
Unfortunately, a serious overdose can sometimes occur in people who have taken theophylline-type drugs without trouble for many years. There may be no advance warning that anything is wrong - no mild side effects preceding the serious ones. To protect yourself against this, you need regular blood tests from your doctor.
One fundamental problem with theophylline-type drugs is that many different factors - including diet, illnesses other than asthma, and taking other drugs - can alter the way your body deals with the drug. If your liver is breaking down the drug more slowly than usual, the amount in your blood will rapidly increase, and can reach toxic levels.
These are steps that can help prevent an overdose with theophylline-type drugs:
• If you start taking a new drug of any kind, or stop taking a drug (especially the contraceptive pill), or if you change your intake of nicotine or alcohol, ask your doctor - preferably in advance - if your dose of theophylline-type drug needs to be changed.
• A great many drugs interact with theophylline-type drugs, including the new anti - leukotriene drugs. You should always be cautious with any new drug, but take particular care with two antibiotics - ciprofloxacin (brand name Ciproxin) and erythromycin (various brand names) - and with cimetidine (various brand names), used for stomach ulcers and heartburn.
• If you have flu vaccinations, or develop certain illnesses, especially viral infections, heart disease or liver disease, watch for the typical side effects of theophylline-type drugs (see above) and consult your doctor immediately if any occur. These conditions all change the effects of theophylline-type drugs.
• Don’t eat meals that are very high in fats or oils. A lot of fatty food causes too much of the drug to be released at once from the slow-release preparations and increases the risk of side effects. Avoid sudden, major, changes to your diet.
• See your doctor regularly for check-ups. Simply getting older changes your reaction to these drugs: your dose may need to change over the years.
• If you are at all forgetful about tablets, keep a careful record of when you have taken your theophylline-type drugs. Be very careful never to take a second dose by mistake.
• Talk to your doctor if you are not taking a slow-release form of theophylline (see box below for brand names). There are usually fewer side effects from these than from the ordinary forms of the drug.
• Wear a Medic Alert bracelet (see box on p. 95) saying that you are taking theophylline-type drugs. If you have a severe asthma attack and are taken to hospital, it is important that medical staff know this, so that they do not give you more drugs of this type.
While pregnant or breast-feeding, it may be advisable to stop taking theophylline-type drugs: discuss this with your doctor. Although the drugs do not affect most unborn or newborn babies, there are occasional reports of toxicity. Less seriously, theophylline-type drugs go through into breast milk, and may make babies irritable and restless. This problem can be solved by always taking the drug just after a feed - this reduces the amount in the milk.
Theophylline-type drugs might produce behavioural problems and learning difficulties in young children although this is unproven. Research shows that there are no problems for children over six.
Anti-IgE drugs
For asthmatics with strong allergic reactions, who are not doing well on ordinary treatment, the new anti-IgE drugs, such as omalizumab may be very valuable (see p. 149). They are given as a depot injection under the skin.
Some common brand names
Common brand names of theophylline-type drugs include: slow-release preparations — Lasma, Nuelin SA, Phyllocontin Continus, Slo-Phyllin, Theo-Dur, Uniphyllin Continus
ordinary preparations - Aminophylline, Nuelin Ketotifen
Ketotifen (brand name Zaditen) is an antihistamine (see p. 138), although it has other effects in addition to those of ordinary antihistamines. Most significantly, it stabilises mast cells in a similar way to cromoglycate.
One advantage of ketotifen to many people is that it is taken by mouth, in capsule, tablet or syrup form. When it was first introduced, doctors hoped that it would be of particular help in asthma, but it has not lived up to expectations. However, some asthmatics do find it effective. It is worth trying because, it it works, it could permit you to reduce your dose of steroids.
Ketotifen requires up to six weeks to take effect, so continue taking your previous drugs (e.g. steroids) for at least six weeks, or you will risk losing control of your asthma.
Side effects
Minor side effects from ketotifen include nausea, headache, increased appetite and weight gain, drowsiness, dry mouth and slight dizziness. Do not drive until you are sure that ketotifen does not make you drowsy. Alcohol may pack a more powerful punch than usual, so drink very moderately at first. If drowsiness is a problem, take the drug in the late evening. The sleepy feeling may wear off after a few weeks of taking the drug.
There are no serious side effects from ketotifen, except if taken with drugs for diabetes.
Anti-leukotriene drugs
Leukotrienes are among the messenger chemicals that are produced by mast cells during an allergic reaction (see box on p. 12). They help to perpetuate the inflammatory process begun by histamine, and they amplify the reaction by attracting more immune cells into the area.
The anti - leukotriene drugs fall into two distinct groups:
• those that bind to the receptors for leukotrienes, called leu kotriene- receptor antagonists. Currently, there are two drugs in this group, montelukast (brand name Singulair) and zafirlukast (brand name Accolate). A third drug, pranlukast, is in the pipeline and currently going through its safety trials.
• those that block the production of the leukotrienes altogether, called 5-lipoxygenase inhibitors. There is only one drug in this group at present, zileuton (brand names Leutrol, Zyflo); it is not yet available in Britain.
As regards tackling inflammation, the anti - leukotriene drugs work in a completely different way from either steroids or cromoglycate. This makes them useful as an add-on treatment, supplementing the effects of existing anti-allergy drugs.
For asthmatics, anti-leukotriene drugs may be particularly good in combination with antihistamines – whereas antihistamines alone are singularly unsuccessful in asthma (see p. 138). Recent research suggests that taking antihistamines together with antileukotriene drugs is an effective way to control airway inflammation. However, there have been no large-scale trials of this treatment option yet, and it may be a while before it comes into general use.
In the airways of people with asthma, leukotrienes can directly trigger bronchospasm (contraction of the airway muscles) as well as fostering inflammation and increasing mucus production. This multiple action of leukotrienes makes anti-leukotriene drugs very valuable for asthmatics because they act as both relievers (reversing bronchospasm) and preventers (tackling inflammation). They are especially useful for exercise-induced asthma.
All the anti-leukotriene drugs are taken in tablet form. If you are trying an anti - leu kotriene drug for the first time, don’t expect any noticeable effects to occur for about three days. Once you are taking the drug regularly, each dose requires 2-4 hours to have its full effect, but goes on working for 12-24 hours in total.
Although anti - leu kotriene drugs have a reliever effect, they cannot give you immediate relief from bronchospasm. Asthmatics must therefore carry a short-acting beta-2 reliever (see pp. 152-3) as well, in case of an asthma attack.
For those who dislike inhalers, or tend to forget to use them, the fact that these drugs are taken once a day in tablet form makes them an attractive option. However, they are expensive, and at present doctors prescribe them mainly for young children who have difficulty inhaling their usual drugs.
Side effects
The side effects noted in safety trials of these drugs were all minor ones:
• zafirlukast – headache, nausea, diarrhoea, pain
• montelukast – headache, diarrhoea, abdominal pain, cough, and flu-like symptoms
• zileuton – upset stomach
As with all new drugs, you should report any unusual symptoms to your doctor, just in case these represent a rare or longterm side effect of the drug (see p. 137).
Very occasionally montelukast provokes allergic reactions, with symptoms such as itchiness, widespread nettle rash (urticaria) or swelling (angioedema).
Zafirlukast and zileuton can both cause liver damage, but this is rare. Your liver function should be closely monitored by the doctor, by means of regular blood tests, and the drug withdrawn at the first sign of trouble. Montelukast can also affect the liver, but this is extremely rare.
The most worrying development noticed to date is the appearance, in a very few people taking zafirlukast or montelukast, of a disorder called Churg-Strauss Syndrome. The symptoms may include a blotchy purplish rash (due to vasculitis – see lower box on p. 73), a flu-like illness, worsening asthma, and numbness or tingling in the limbs. The heart, lungs and nerves are all affected, because eosinophils (see p. 19) are present in large numbers and cause damaging inflammation.
A study of the cases reported so far suggests that this syndrome may not be due to the anti-leukotriene drugs themselves but to other causes – usually (though not always) a reduction in the dose of steroids. Other patients who are not taking antileukotriene drugs, but are reducing or stopping steroids, may also (again, very rarely) develop Churg-Strauss Syndrome. Doctors now suspect that all these patients were already suffering from an underlying eosinophilic disease, which first showed itself simply as asthma, and was quelled by the steroid treatment prescribed for the asthma. The disease was thoroughly masked as long as the patient was using steroids, but when steroids were withdrawn, the underlying disease flared up, producing a wide range of symptoms. In most cases, reintroducing steroids brings these symptoms under control again.
Putting it all together
What is the ideal combination of all these asthma drugs? That is something your doctor can only work out slowly, because it varies from one individual to another.
The conventional approach to asthma treatment is to start patients on a short-acting beta-2 reliever and then, if the symptoms are not controlled, to add other drugs. This approach is called ’stepping up’. The standard steps, or stages, are as follows:
1. Use a short-acting beta-2 reliever only.
2. Add cromoglycate or low-dose inhaled steroids.
3. Try a higher dose of inhaled steroid or a long-acting beta-2 reliever.
4. Try out each of the following in turn: theophylline, anticholinergic drugs, cromoglycate and higher doses of beta-2 relievers (either inhaled or as tablets/syrup).
5. If there is still no success in controlling symptoms, add regular steroid tablets.
Short courses of steroid tablets may be used at any stage, for the control of sudden, severe, attacks.
Over the last ten years, there has been a change of strategy, and very few people are now kept on Stage 1. Inhaled steroids are now given to most asthmatics, even those with relatively mild asthma. Research from Sweden, where widespread use of
inhaled steroids first became general policy, shows considerable benefits to this approach.
If you have gone beyond Stage 2, ’stepping up’ is usually followed by ’stepping down’. In other words, when the symptoms have been well controlled for 3-6 months, doses of some drugs are reduced, or certain drugs stopped altogether. If the asthma flares up again, the dose is increased or the drug reinstated. If there are no problems, and symptoms remain stable for a month or two, another reduction is tried.
An entirely different approach to asthma management is now being tried with some patients – starting off with moderate to high doses of inhaled steroids (equivalent to Stage 3) and then ’stepping down’. The idea is to get the inflammation under control promptly and fully at the outset. This often seems to be the best strategy.
A few asthmatics don’t get much benefit from steroids. If your dose of steroid needs to be raised repeatedly, or you still need to use your reliever daily in spite of taking steroids, you may have steroid-resistant asthma. There are other drugs that can help, including anti-leukotriene drugs and the more powerful anti-allergy drugs (see p. 149).
Alcohol, caffeine and asthma
Some asthmatics experience bronchodilation (opening up of the airways) when they drink alcohol, while others experience
bronchospasm (tightening of the airways). For those whose airways open up, there is probably no harm in sometimes having a drink to relieve your asthma symptoms, assuming these are fairly mild. Clearly, it would not be a good idea to make a daily habit of this.
If your airways tighten up with alcohol, you will probably be pleased to hear that it may not be the alcohol itself. Alcoholic drinks contain a great variety of other ingredients, either derived from the original ingredients or generated during the fermentation process. Called ‘congeners’, these vary from one type of alcoholic drink to another, and they are often the culprits in asthma. So you may well find that, while one kind of alcoholic drink has a bad effect, another is fine.
Caffeine has a far more uniform effect — for most asthmatics it opens up the airways. However, the amount needed to relieve an asthma attack will also produce unpleasant side effects, such as a pounding heart or shaky hands. There are also long-term problems with such high doses of caffeine, including insomnia, headaches, nervousness and ‘restless legs’. It is much better to use your reliever inhaler to control an attack: the drug in the inhaler has been chemically tailored to give the maximum therapeutic benefit with the minimum of side effects. Anyone who consumes tea or coffee excessively can make themselves seriously ill, either physically or mentally, and it is not always obvious that caffeine is the cause (see p. 235).
Tags: 30 minutes, abdominal, allergic reactions, Allergy, allergy drugs, antihistamines, asthma management, asthma treatment, asthmatics, bronchospasm, chemicals, cromoglycate, dangerous side effects, diarrhoea, dizziness, eosinophils, general health, headache, IgE, inflammation, inhaled steroids, ketotifen, leukotriene, mast cell, medicinal drugs, mild asthma, narrow margin, nicotine, nocturnal asthma, preferred treatment, stomach pains, theophylline, toxicity, treatment option, urticaria, xanthines, zafirlukast, zileuton
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Monday, May 18th, 2009
FOOD SENSITIVITY IN ASTHMA, ECZEMA AND OTHER ALLERGIC DISEASES
In 1995, medical researchers in North Carolina, USA, asked over a hundred dermatologists how they treated atopic eczema. All used standard treatments such as moisturisers and steroid creams, but only 14% mentioned the possible role of food to the parents of children with eczema.
Between them, the dermatologists in this study treated about 17,000 children with atopic eczema per year. Using the most widely accepted estimates for food sensitivity in atopic eczema –38% of eczematous children are sensitive to food – one can calculate that there were over 5000 children in this study area who might perhaps have benefited from avoiding a problem food, but whose parents were never told about this treatment option.
North Carolina is by no means unique. The situation is much the same in other parts of the world, which adds up to millions of children and parents not even being told about a treatment that is frequently effective.
Other allergic diseases (see right) can also be triggered by food, although the percentage of patients affected is much lower than for atopic eczema. Here too, many doctors are unaware of (or sceptical about) the possible role of food.
These reactions are best described as ‘food sensitivity’. They cannot be called food allergy (see p. 62) if there are no symptoms in the mouth or gut and if skin-prick tests are negative – as is often the case. Negative skin tests suggest that the reaction is not IgEmediated (see box on p. 12).
However, in some children with atopic eczema. the skin-prick tests to culprit foods are positive. When these foods are eaten after a period of avoidance, such children sometimes suffer an
immediate reaction, with symptoms typical of true food allergy. For these individuals, their atopic eczema seems to be a symptom of IgE-mediated food allergy.
How can an atopic eczema reaction in response to food be IgE-mediated in one individual and not in another? Research is finally beginning to answer this question (see pp. 18-19).
The allergic conditions that may sometimes be induced, or simply aggravated, by a non-immediate reaction to food are:
• atopic eczema (atopic dermatitis)
• asthma
• perennial allergic rhinitis (constantly blocked or runny nose)
• chronic sinusitis
• secretory otitis media (’glue ear’).
In all of these conditions, many other causes exist. Except in the case of eczema, the other causes are far more likely than sensitivity to food. This fact will weigh heavily with your doctor, whose instinct, quite sensibly, is to look for likely causes first.
Taking asthma as an example, food sensitivity is relatively unusual as a primary cause, whereas allergy to airborne items. such as pollen or house-dust mite, is very common. Food probably affects only 8-10% of asthmatics overall, but is much more important for those with brittle asthma (the most severe and unstable form), affecting as many as 60% in a recent study.
The pollen connection
People who suffer from both birch-pollen allergy and atopic eczema may have worsening eczema when they eat certain fruits and vegetables, e.g. apples and carrots. These same foods cause Oral Allergy Syndrome (see box on p. 63) in some with birch-pollen hayfever, but they can aggravate eczema without causing Oral Allergy Syndrome.
Diagnosis
Consider other likely allergens first. Look at p. 28 for the airborne allergens that could play a part in perennial allergic rhinitis, chronic sinusitis, secretory otitis media (’glue ear’), and asthma. Only in the case of children with atopic eczema is food a prime suspect (between 38% and 69% of children with atopic eczema are affected by food), but even here there are a lot of other factors to consider (see pp. 43-4).
If you do decide to investigate the role of food, don’t abandon basic treatments in the meantime. By neglecting these. you could make the whole problem a great deal worse.
There are various clues that food is at fault:
• If you have other symptoms that suggest food intolerance (see p. 76). These problems often seem to go together with food-induced asthma or rhinitis.
• If you have noticed that a particular food makes your symptoms worse. Where there is intolerance to one food, there could well be intolerance to another, which you have not noticed.
• If you have exercise-induced asthma (see p. 41) and sometimes respond severely to exercise but sometimes have little or no reaction. Sensitivity to a food or foods may be instrumental in changing the response to exercise.
• If you have brittle asthma – but you must get your doctor’s consent for an elimination diet. Foods must be tested under medical supervision as severe life- threatening asthmatic reactions can occur on testing.
• If there are also digestive problems such as diarrhoea, vomiting or belching. This is a strong clue in the case of children with atopic eczema. Symptoms such as diarrhoea frequently precede atopic eczema, and it seems likely that a reaction to food in the gut increases the leakiness of the gut wall, allowing more food molecules through to the blood.
• If there is pronounced eczema around the mouth in children (but this can also be due to constant licking),
• For adults with atopic eczema, if there is a persistent rash on the hands, or the lips. Where there is a blistering rash on the hands that erupts at regular intervals, food is often the problem – or it may be metal contaminants of food such as nickel (see pp. 55-6). In general, food sensitivity is rarer among adults with atopic eczema than it is among children.
Skin-prick tests (see p. 91) for commonly eaten foods are worth
trying in all the diseases – if they give a positive result, they should
be noted, but if they give a negative one, they should be disre-
garded. The many alternative tests being marketed (see p. 93) are
highly inaccurate and unlikely to help.
Research from Tampere University Hospital in Finland suggests that babies are much more likely to give false-negative skin-prick tests for food than older children and adults with atopic eczema. The Finnish researchers found that 52% of babies with atopic eczema give a negative skin-prick test despite having a genuine reaction when tested by food challenge. In an attempt to tackle this problem, they have devised a patch test, similar to those used for contact dermatitis. The patch test, in which food is applied to intact skin and left there for two days, gives false negatives in only 39% of babies.
The best way to detect food-sensitive eczema, according to Dr Erika Isolauri. who heads the Finnish research team, is to use both tests, and take note of a positive reaction to either. This detects 80-90% of eczema-causing food reactions in infants.
Few other doctors are currently using patch tests for atopic eczema; because so much controversy surrounds this topic, and no standardised method has yet been devised. You may be lucky and find a specialist who does these tests.
To confirm the role of particular foods in atopic eczema, a food challenge test is essential, having first avoided the food carefully for two weeks. Great care is needed in testing (see p. 198).
If you cannot get suitable tests done. a simple elimination diet will be needed (see p. 198).
Treatment
There is a choice here, between avoiding the offending food, or eating normally and controlling the symptoms with drugs.
The difficulty comes when parents have to make this decision on behalf of their children. Unfortunately, there is insufficient evidence as regards the consequences of this decision. Treating food sensitivity can reduce the eczema symptoms substantially in the short term, but it does not necessarily improve the long-term prospects for the child. Orthodox doctors tend to think that eating a normal diet is much better for a child nutritionally and socially, and they have a point.
Doctors with a special interest in food sensitivity generally believe that treating the problem at source, rather than just suppressing the symptoms with drugs, must take the pressure off the child’s immune system, and give the child a better chance of growing out of sensitivity reactions in the long run.
The decision is yours – but it is vital that the diet is not more of an encumbrance than the disease itself, and that the child’s interests come first (see pp. 170-71). Whatever you do, don’t allow a child to become malnourished (see p. 198).
Tags: Allergens, ALLERGIC, allergic disease, Allergic Diseases, asthma, atopic eczema, avoidance, children and parents, contact dermatitis, culprit, dermatologists, diarrhoea, DISEASES, doctors, eczema, estimates, food sensitivity, hayfever, House-dust, IgE-mediated, IgEmediated, IgG, medical researchers, north carolina usa, Oral Allergy, perennial allergic rhinitis, prick, sensitivity, skin prick tests, skin tests, Steroid, steroid creams, Syndrome, treatment option, true food allergy, vomiting
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