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Posts Tagged ‘Bronchial’

Corticosteroids Oral, Corticosteroids Topical, Cortisporin Otic, Cosopt

Monday, August 3rd, 2009

Type of Drug
corticosteroids, Oral (kor-tih-koe-STER-oids)
Brand Names
Betamethasone Celestone
Gerzq(t St D?Pdient: Budesonide Entocort EC
Cortisone Acetate &I
Dexamethasone EQ Mymethasone
Fludrocortisone
Hydrocortisone Cortef
Methylprednisolone 19 Medrol
Prednisolone 10
Orapred    Pediapred
Orapred ODT    Prelone
Prednisone 0 Prednisone Intensol    Sterapred
Prescribed For
A wide variety of disorders from rash to cancer, including adrenal disease, adrenal hormone replacement, bursitis, arthritis, severe skin diseases including psoriasis and other rashes, severe or disabling allergies, asthma, drug or serum sickness, attacks of multiple sclerosis, severe respiratory diseases including pneumonitis, blood disorders, gastrointestinal (GI) disease including ulcerative colitis and Crohn’s disease, and inflammation of the nerves, heart, or other organs. Dexamethasone is also used to treat mountain sickness, vomiting, bronchial disease in premature babies, excessive hairiness, and hearing loss associated with bacterial meningitis. Fludrocortisone is used to treat Addison’s disease and for symptomatic orthostatic hypotension. Prednisone is used to improve strength and function of some muscular dystrophy patients. Methylprednisolone is used to decrease mortality in some patients suffering from severe alcoholism and chronic active hepatitis.
General Information
Produced by the adrenal gland, natural corticosteroids are hormones that affect almost every body system. The major dMeyences among corticosteroid drugs are potency and variation in secondary effects, 0OZ10r preference and past experience with a Mftosferoid usually determine which drug to prescribe for a specific disease.
Cautions and Warnings
Do not use an oral corticosteroid if you are allergic or sensitive to any of its ingredients.
Corticosteroids may mask symptoms of an infection. Because these drugs compromise the immune system, new infections may occur during corticosteroid treatment; when this happens, a relatively minor infection that would respond to ordinary treatment can turn serious. Corticosteroids may impair immune response to hepatitis B, prolonging recovery. They may reactivate dormant amebiasis (a parasitic infection). Corticosteroids should not be taken if you have a fungal blood infection, because they can allow the infection to spread more easily. They should be used with caution by people with herpes eye infection, tuberculosis or in any other bacterial, fungal, or viral infections.
Long-term use of any corticosteroid may increase the risk of developing cataracts, glaucoma, or eye infections, especially viral or fungal.
When stopping a corticosteroid, dosage must be reduced gradually under a doctor’s supervision—otherwise you may experience adrenal gland failure.
If you are taking large corticosteroid doses. you should not receive any live virus vaccine because corticosteroids interfere with the body’s reaction to the vaccine.
Hydrocortisone and cortisone may lead to high blood pressure. Other corticosteroids are less likely to affect blood pressure.
Corticosteroids should be used with caution if you have severe kidney disease.
High-dose or long-term corticosteroid therapy may aggravate or worsen stomach ulcers. This may occur when total dosage reaches 1000 mg of prednisone, 150 mg of betamethasone or dexamethasone, 5000 mg of cortisone. 4000 mg of hydrocortisone, 1000 mg of prednisolone, or 800 mg of methylprednisolone.
People who have recently stopped taking a corticosteroid and are going through a period of stress may need small doses of a rapid-acting corticosteroid, such as hydrocortisone, to get them through this period. Call your doctor if you think you might be experiencing this kind of stress reaction.
Use corticosteroids with caution if you have had a recent heart attack or have, Colitis, heart failure, high blood pressure, blood-clotting tendencies, thrombophlebitis, osteoporosis, antibiotic-resistant infections, Cushing’s disease, myasthenia gravis, metastatic cancer, diabetes, underactive thyroid disease, cirrhosis of the liver, or seizure disorders.
corticosteroid psychosis (symptoms include euphoria or feeling “high,” delirium, sleeplessness, mood swings, personality changes, and severe depression) may develop in people taking dosages greater than 40 mg a day of prednisone. These symptoms may also develop with other corticosteroids taken in equivalent doses (see “Usual Dose” for relative equivalencies). Symptoms of corticosteroid psychosis usually develop within 15-30 days of beginning treatment. These symptoms may also be linked to other factors—women and those with a family history of psychosis are more at risk.
Corticosteroids can cause loss of calcium, which may result in bone fractures and aseptic necrosis of the femoral and humorai heads (a condition in which the large bones in the hip degenerate from loss of calcium).
Prednisone may aggravate emotional instability.
Corticosteroids do not cure multiple sclerosis (MS) or slow its progression, though they may speed recovery from attacks of the disease.
. Corticosteroid products often contain tartrazine dyes and sulfite preservatives. Many people are allergic to these chemicals.
Possible Side Effects
✓    Most common: headache, respiratory infections, acne, and bruising.
✓    Common: water retention (swollen ankles), back pain, heart failure, upset stomach (possibly leading to stomach or duodenal ulcer), potassium loss, dizziness, fatigue, insomnia, weight gain, increased appetite, nausea, stomach gas, abdominal pain, general pain, muscle weakness, loss of muscle mass, slowed healing of wounds, increased sweating, allergic rash, itching, convulsions, excess hair growth, and worsening of a pre-existing psychiatric condition.
✓    Less common: irregular menstruation; slowed growth in children, particularly after lengthy periods of corticosteroid treatment; adrenal or pituitary gland suppression; diabetes; drug sensitivity or allergic reactions; blood clots; moon face; feeling unwell; euphoria; mood swings; personality Changes; and severe depression.
♦    Rare: Rare side effects can appear in any part of the body. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
•    Tell your doctor if you are taking any oral anticoagulant (blood-thinning) drug. If you begin taking a corticosteroid, your anticoagulant dosage may have to be adjusted.
•    Combining a corticosteroid and a diuretic such as hydrochlorothiazide may cause loss of blood potassium. Low blood potassium may increase the side effects of digitalis drugs.
•    Contraceptive drugs, estrogen, erythromycin, azithromycin, clarithromycin, and ketoconazole may increase the risk of corticosteroid side effects.
•    Barbiturates, aminoglutethimide, phenytoin and other hydantoin anticonvulsants, rifampin, ephedrine, colestipol, and cholestyramine may reduce the effectiveness of corticosteroids.
•    Corticosteroids may decrease the effects of aspirin and other salicylates, growth hormones, and isoniazid.
•    Combining a corticosteroid and a theophylline drug may require a dosage adjustment of either or both drugs.
•    Corticosteroids may interfere with laboratory tests. Tell your doctor if you are taking any of these drugs so that tests are properly analyzed.
•    Limit your intake of alcohol while on oral corticosteroids.
Food Interactions
Take corticosteroids with food or a small amount of antacid to avoid stomach upset. If stomach upset continues, notify your doctor. Grapefruit juice doubles the amount of some oral corticosteroids absorbed into the blood.
Usual Dose
Once-daily doses should be taken in the morning. Dosages vary greatly and depend upon the specific disease being treated. Dosages for infants and children should be individualized according to severity of disease and response to treatment.
Betamethasone: starting dosage-0.6-7.2 mg a day. Maintenance 1609age-0.6-7.2 mg a day.
Budesonide: 9 mg a day.
Cortisone: starting dosage-25-300 mg a day. Maintenance dosage-25-300 mg a day.
Dexamethasone: 0.75-9 mg a day. Daily dosage sometimes exceeds 9 mg. A temporary dosage increase may be necessary it you are experiencing emotional stress. In alternate-day therapy, twice the usual daily dose is taken every other day.
Hydrocortisone: 20-240 mg a day.
Methylprednisolone: starting dosage-4-48 mg or more a day. Maintenance dosage varies. A temporary dosage increase may be necessary if you are experiencing emotional stress. in alternate-day therapy, twice the usual daily dose is taken every other day.
Prednisone and Prednisoione: 5-60 mg a day. Daily dosage sometimes exceeds 60 mg. A temporary dosage increase may be necessary if you are experiencing emotional stress. In alternate-day therapy, twice the usual daily dose is taken every other day.
Equivalent doses: Using 5 mg of prednisone as the basis for comparison, equivalent doses of other corticosteroids are 0.6 mg-0.75 mg of betamethasone, 25 mg of cortisone, 0.75 mg of dexamethasone, 20 mg of hydrocortisone, 4 mg of methylprednisolone, and 5 mg of prednisolone.
Overdosage
Symptoms of overdose are anxiety, depression or stimulation, joint or muscle pain, blurred vision, stomach bleeding, increased blood sugar, high blood pressure, and water retention. The victim should be taken to a hospital emergency room immediately. ALWAYS bring the prescription bottle or container.
Special Information
Do not stop taking this medication without your doctor’s knowledge. Suddenly stopping any corticosteroid drug may have severe consequences; the dosage must be gradually reduced by your doctor.
G& your doctor if you develop unusual weight gain, black or tarry stools, swelling of the feet or legs, muscle weakness, vomiting of blood, menstrual irregularity, prolonged sore throat, fever, cold or infection, appetite loss, nausea and vomiting, diarrhea, weight loss, weakness, dizziness, or low blood sugar.
If you take several doses a day and forget a dose, take the dose you forgot as soon as possible. It it is almost time for your next dose, skip the one you forgot and double the next dose. If you take 1 dose a day and forget a dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose.
If you take a corticosteroid every other day and forget a dose, take it immediately if you remember it in the morning of your regularly scheduled day. If it is much later in the day, skip the dose you forgot and take it the following morning, then go back to your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Studies have shown that long-term corticosteroid therapy at high dosages may cause birth defects, as may chronic corticosteroid use during the first 3 months of pregnancy. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
Corticosteroids taken by mouth may pass into breast milk. Most nursing mothers who must take a corticosteroid should use infant formula, though low dosages of some of these drugs may be taken for short periods while breast-feeding. Consult your doctor.
Seniors: Seniors are more likely to develop high blood pressure while taking an oral corticosteroid. Older women are more susceptible to osteoporosis (a condition characterized by loss of bone mass due to depletion of minerals, especially calcium) associated with high dosages of oral corticosteriods. Lower dosages are just as effective in seniors and cause fewer side effects.

Type of Drug
Corticosteroids, Topical
(kor-tih-koe-STER-oids)
Brand NameS
CLASS 1–Super-potent topical products
Betamethasone Dipropionate gel, ointment 0.05% 91
Diprolene gel/ointment
C/obetasol Propionate 0.05% cream, foam, gel, lotion, shampoo, ointment 19
Clobex    Olux
Cormax    Olux E
Embeline    Temovate Embeline E
Difforasone Diacetate ointment 0.05% RE Olux-E Foam    Psorcon E
Fluocinonide cream 0.1 % 0 Vanos
Flurandrenolide tape 4 MCgICM2 Rfl Cordran Tape
Halobetasol Propionate cream/ ointment 0.05%
Ultravate
CLASS 2—High-potency topical products  Amcinonide ointment 0.1 % (0
Betamethasone Dipropionate cream 0.05%
Diprolene AF
Generic Ingredients: Betamethasone Dipropionate (0.064%) + Calcipotriene (0.005%) ointment
Taclonex
Desoximetasone Cream, ointment 0.25% and 0.05%; 0.05% gel DG
Topicort    Topicort LP
Generic 10gVEOUnt.- Diflorasone Diacetate cream, ointment 0.05% 91
Apexicon    Florone E
Apexicon E    Maxiflor
Florone    Psorcon
Fluocinonide cream, gel, ointment,
solution 0.05% 9
Lidex    Lidex E
Halcinonide cream, ointment, solution 0.1 % Halog
Mometasone Furoate ointment 0.1 % 91 Elocon
Triamcinolone Acetonide ointment 0.5% RE
CLASS 3—Upper mid-strength topical products  Amcinonide lotion 0.1 % 0
Betamethasone Dipropionate cream 0.05% (a
Diprolene    Teladar
Maxivate
Generic Ingredient.- Betamethasone Valerate ointment 0.1 %
Fluocinofone Acetonide [’61 Capex Shampoo
Fluticasone Propionate cream 0.05% 9 Cutivate
Triamcinolone Acetonide cream 0.5%
Delta-Tritex    Kenonel
Flutex    Triacet
Kenalog Cream    Triderm Kenalog-H
CLASS 4—Mid-strength topical products  Amcftnide cream 0.1% D3
Betamethasone Dipropionate lotion 0.05% and foam 0.12%®
Diprosone    Maxivate Lotion
Luxiq Foam
Desoximetasone cream 0.05% 19 Topicort
Fluocinolone Acetonide
Synalar Ointment 0.025%    Synalar-HP Cream 0.2%
Flurandrenolide ointment 0.05% Cordran
Fluticasone Propionate lotion 0.05% Cutivate
Hydrocortisone Valerate ointment 0.2% ED Westcort
Mometasone Furoate cream, lotion, solution 0.1
Elocon
Prednicarbate ointment 0.1 % 10 Dermatop E
Triamcinolone Acetonide 0.1 %
Aristocort A    Delta-Tritex Cream
Aristocort Cream and    Kenalog
Ointment    Triderm
CLASS 5—Lower mid-strength topical products  Betamethasone Valerate cream, lotion 0.1
Beta-Val    Dermabet
Betatrex    Valnac
Clocortolone Pivalate cream 0.1 % Cloderm
Desonide ointment 0.0511/0
Desonate    Tridesilon
UnOwen    Verdeso Foam Lokara
Fluocinolone Acetonide cream 0.025% 91 Synalar
Flurandrenolide cream, lotion M Cordran Lotion 0.05% Cordran SP 0.05% Cordran Ointment 0.25%
Fluticasone Propionate ointment 0.005% Cutivate
Hydrocortisone Butyrate Cream, ointment, solution 0.1 0
Locoid
Hydrocortisone Probutate 0.1% Pandel
Hydrocortisone Valerate cream 0.2% RE Westcort
Prednicarbate Cream 0.1 % RE Dermatop E
CLASS 6—Mild topical products
Alclometasone Dipropionate cream, ointment 0.05% 91
Aclovate
Desonide cream, lotion 0.05% DesOwen    Tridesilon Lokara
Fluocinolone Acetonide cream, shampoo, solution 0.01%
Derma-Smoothe/FS Oil    FS Shampoo
Flurosyn    Synalar
Flurandrenolide cream DG Cordran SP 0.025%
Generic Ingredient., Triamcinoione Acetonide cream 0.1 % MS10cort
Triamcinolone Acetonide cream 0.025% Flutex    Triacet
Kenalog
CLASS 7—Least potent topical products  Hydrocortisone A
1% HC    HydroSkin
Ala-Cort    HydroTex
Ala-Scalp    Hytone
Alcortin    Ivy Soothe
Analpram-HC    Maximum Strength Bactine
Anusol-HC    Maximum Strength Cortaid
Cetacort    Maximum Strength Cortaid
Cortaid Intensive Therapy    Faststick
Cortizone-5    Maximum Strength
Cortizone-10    KeriCort-1 0
Cortizone-10 Plus    Nutracort
Cortizone-10 Quickshot    Procort
Cortizone for Kids    Proctocream-HC
Delcort    Proctofoam-HC
Extra Strength CortaGel    Stie-cort
Hemril    Synacort
Hi-Cor 1.0    Tegrin HC
Hi-Cor 2.5    Texacort Hycort
Hydrocortisone Acetate cream, ointment 0.5% and 1%G
Cortef Feminine Itch    Lanacort
Corticaine    Maximum Strength Caldecort
Cortifoam    Micort-HC
Dricort    U-Cort Gynecort Female Creme
Prescribed For
Inflammation, itching, eczema, dermatitis, vitiligo (patchy loss of skin color), blistering skin diseases, lupus and other connective tissue diseases, psoriasis, and many other specialized skin problems; may also be used to Weal severe diaper rash.
General Information
Topical corticosteroids do not cure the underlying cause of skin problems, but they can relieve symptoms of rash, itching, or inflammation by interfering with the body mechanisms that produce them. You should never use a topical corticosteroid without your doctor’s knowledge because it could mask a symptom important in diagnosing your condition. Also, improper use of a topical corticosteroid could lead to unwanted and sometimes permanent side effects. In general, ointment forms of topical steroids are more potent and usually more effective than cream or lotion forms. Ointments are also less likely to cause allergic reactions because they contain fewer inactive ingredients.
Generic products in this group can vary in potency and produce different results from their brand-name counterparts, even though they contain the identical quantity of active ingredient. Topical steroids are rated from 1 (most potent) to 7 (least potent). Generally, products within a potency class are interchangeable. Ask your doctor or pharmacist which products are interchangeable. The lowest potency products are available without a prescription. Ointments tend to be more potent than creams and solutions and different product concentrations affect their classification.
Super-potent topical corticosteroids (class 1) should not be used on the face, neck, under the arms, or in the groin area. These products are generally reserved for situations in which less potent products have not worked. They should be used with caution, and should only be applied to the areas that are affected with the rash. Using a product in this category for longer than 2 weeks at a time increases the risk of permanent skin damage.
High-potency topical corticosteroids (classes 2 and 3) are best for the trunk, arms, and legs, but should not be used on the face, neck, under the arms, or in the groin area. Using a product in this category for longer than 2 weeks at a time increases the risk of permanent skin damage.
Intermediate-potency topical corticosteroids (classes 4 and 5) can be used in children for up to 1-2 weeks at a time. This type of medication is best for the trunk and extremities. It is safer for use on thin skin, and less effective on thicker skin.
Low-potency topical corticosteroids (classes 6 and 7) can be used on any part of the body, and can be used in children. They are the best choice for the face, uadera~m area, groin, neck, and i ftl Occluded areas such as skin folds.
Cautions and Warnings
Do not use a topical corticosteroid if you are allergic or sensitive to corticosteroids or to any ingredients of the aerosol, cream, gel, lotion, ointment, or solution. Do not use a topical corticosteroid as the sole treatment for bacterial skin infections such as impetigo, viral skin diseases such as herpes, fungal skin infections such as athlete’s foot, or known tuberculosis of the skin. These drugs should not be used in the ear if the eardrum is perforated. Do not use a topical corticosteroid on ulcerated skin, or to treat acne.
Skin problems can become less responsive with time if a product is applied continuously over a long period of time. This can re-
sult in a flare-up of the problem when the medication is stopped.
Using a less potent product may avoid this problem.
Rectal corticosteroid products should not be used if you have any serious bowel condition, including bowel perforation, obstruction, abscess, and systemic fungal infection.
The rectal foam is not expelled after it has been applied and may result in higher drug blood levels than those associated with rectal enema products. The risk of systemic (whole-body) side effects is greater when more of the drug enters the blood. If there is no improvement after 2 or 3 weeks of using a rectal corticosteroid, contact your doctor.
Using a topical corticosteroid around the eyes for prolonged periods may cause cataracts, glaucoma and/or permanent thinning and fragility of skin around the eyes where the corticosteroid is being applied.
Children may be more susceptible to serious systemic side effects from topical corticosteroids, including growth retardation, Cushing’s syndrome, and suppression of natural corticosteroid production, requiring a tapering of the medication, especially if the medications are applied to large areas over long periods. Super-potent topical corticosteroids are not recommended for children.
Possible Side Effects
♦ Most common: burning; itching; irritation; “steroid” acne; skin thinning, tightening, or discoloration; stretch marks; dry cracked skin; bruising; and secondary i0ection. These effects are more likely when the treated area is covered Stith al) occlusive bandage (one that prevents contact with water and air). Side effects are more likely with extended use of high-potency topical corticosteroid products and when the treated area is covered with a bandage that completely prevents skin contact with water and air.
Possible Side Effects (continued)
V Significant amounts of corticosteroids may be absorbed into the bloodstream if large amounts are used for long periods. This can result in systemic effects and may cause serious problems, particularly in people with liver disease. Systemic side effects include lightheadedness, hives, growth suppression, and adrenal suppression.
Drug Interactions None known.
Usual Dose
Adult
Cream, Ointment, Solution, Foam, and Aerosol: Apply a thin film to the skin 2-3 times a day. High- and super-potent products should be applied no more than twice a day, and should be used for short-term treatment, usually 2-3 weeks at a time. Some may have to be applied only once a day.
Rectal Enema: 100 mg nightly for 21 days.
Rectal Foam: 1 applicator’s worth, 1-2 times a day for 2-3 weeks.
Child: Dosages for children should be limited to the lowest possible potency.
Overdosage
Serious adverse effects are unlikely after accidental ingestion. Excessive use of large amounts of topical corticosteroids may cause overdose symptoms and require gradual discontinuation of the drug. Call your local poison control center or a hospital emergency room for more information. ALWAYS bring the prescription bottle or container.
Special Information
To prevent secondary infection, clean the skin before applying the drug. Apply a very thin film and rub in gently—effectiveness depends m contact area, not the thickness of the layer applied.
Do not wash, rub, or put clothing on the area until the medication has dried.
Topical corticosteroids have an additive effect: with continuous use, 1 or 2 applications a day may be as effective as 3 or more. Once the drug begins to take effect, your doctor may recommend reducing the dose to the minimum level needed to control the
condition.
Flurandrenolide tape comes with specific directions for use-, fol-
low them carefully.
If your doctor instructs you to apply plastic wrap or any other occlusive dressing, follow directions carefully. These dressings can increase the penetration of the drug into your skin by as much as 10 times, which may be a crucial element in the medication’s effectiveness. Occlusive dressings should not be used with any of the super-potent topical products.
If you are using one of these products for diaper rash, do not use tight-fitting diapers or plastic pants, which can cause too much drug to be absorbed into the blood.
Your doctor may prescribe a specific form of the product with good reason. Do not change forms without your doctor’s knowledge: a different form may not be as effective.
If you forget to administer a dose, do so as Soon as you remember. If it is almost time for your next dose, skip the one you forgot and continue with your regular schedule. Do not administer a double dose.
Special Populations
Pregnancy/Breast-feeding: Large amounts of corticosteroids applied to the skin for long periods of time may increase the risk of birth defects. When your doctor considers any of these drugs crucial, its potential benefits must be carefully weighed against its risks. Do not use any over-the-counter hydrocortisone product for more than a few days without your doctor’s knowledge.
Nursing mothers who must use a topical corticosteroid should consider using infant formula. If you apply a corticosteroid to the nipple area, be sure to completely clean the area prior to nursing. Nursing mothers should never use the highest potency corticosteroids (classes 1, 2 or 3) because of the risk of absorbing large amounts of drug into the system that could find its way into breast milk. Nursing mothers should discuss toqkoa1 corticosteroid use with their doctor befQ(e,applying any product.
Seniors: Seniors are more susceptible to high blood pressure and osteoporosis (a condition characterized by loss of bone mass due to depletion of minerals, especially calcium) associated with large dosages. These effects are unlikely with topical corticosteroids unless a high-potency medication is used over a large area for an extended period.

Brand Name
Cortisporin Otic
Generic Ingredients
Hydrocortisone + Neomycin Sulfate + Polymyxin B Sulfate RE
Other Brand Names
AK-Spore H.C. Otic    Octicair
Antibiotic    Otic-Care
Cortatrigen Ear Drops    Otocort
Drotic    Pediotic
Ear-Eze    UAD LazerSporin-C
Type of Drug
Antibiotic and corticosteroid combination.
Prescribed For
Superficial ear infection, ear inflammation or itching, and other outer ear problems.
General Information
Cortisporin Otic contains a corticosteroid to reduce inflammation and 2 antibiotics to treat local ear infections. This combination can be quite useful for local ear problems because of its dual method of action and its relatively broad applicability.
Cautions and Warnings
Do not use Cortisporin Otic if you are allergic or sensitive to any of its ingredients.
Cortisporin Otic is designed for use in the ear. It can be very damaging if placed into the eye.
Cortisporin should not be used if you have herpes simplex, vaccinia, or chickenpox. It also should not be used by patients sensitive to sulfite.
Cortisporin Otic should not be used iAyou have a perforated eardrum,
Possible Side Effects
V Local irritation, such as itching or burning, may occur as a drug sensitivity or allergic reaction.
Drug Interactions None known.
Usual Dose
3-4 drops in the affected ear 3-4 times a day. Treatment should not last beyond 10 days.
Overdosage
The amount of drug contained in each bottle is too small to cause serious problems. Call a hospital emergency room or your local poison control center for more information. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
Use only when prescribed by a physician. Overuse of this or similar products can result in the growth of new organisms, such as fungi. If new infections or problems appear, stop using the drug and contact your doctor.
Before administering drops, wash your hands, then hold the Closed bottle in your hand for a few minutes to warm it to body temperature. Shake well for 10 seconds. For best results, drops should not be self-administered, but given by another person. The person receiving the drops should lie on his or her side with the affected ear facing upward. Fill the dropper and instill the required number of drops directly in the ear canal.
If the drops are being given to an infant, hold the earlobe down and back to allow the drops to run in. If the drops are being given to an older child or adult, hold the earlobe up and back to allow them to run in. Do not put the dropper into the ear or allow it to touch any part of the ear or bottle. Keep the ear tilted for about 5 minutes after the drops have been put in or insert a soft cotton plug, whichever is recommended by your doctor.
If you forget to administer a dose of Cortisporin Otic, do so as soon as you remember. If it is almost time for your next dose, skip the dose you forgot and continue with your regular schedQ%e. Do not apply a double dose.
Special Populations
Pregnancy/Breast-feeding: There are no studies of Cortisporin Otic in pregnant women but it does contain a corticosteroid, which when used over long periods of time in other formulations may increase the risk of birth defects. This drug should only be used during pregnancy after carefully weighing it potential benefits against its risks. Nursing mothers who must take this drug should use in-Pant formula.
Seniors: Seniors may use this product without special restriction.

Brand Name
Cosopt
Generic Ingredients  Dorzolamide + Timolol
Type of Drug
Carbonic anhydrase inhibitor and beta blocker combination.
Prescribed For
Open-angle glaucoma and ocular hypertension.
General Information
Cosopt contains 2 glaucoma drugs that work in different ways. It is intended for people whose glaucoma does not respond to either drug used alone. Small amounts of dorzolamide and timololthe active ingredients in Cosopt–enter the bloodstream.
Cautions and Warnings
Do not use Cosopt if you are allergic or sensitive to any of its ingredients or cannot take sulfa drugs or beta blockers. Cosopt should not be used by people with bronchial asthma, severe chronic obstructive pulmonary disease, slow heart rate or heart block, heart failure, or who are in shock.
People with diabetes or an overactive thyroid should use Cosopt with caution since beta blockers can mask the signs of low blood sugar or hyperthyroidism.
Small amounts of both ingredients enter the bloodstream and can produce the same kinds of systemic (whole-body) reactions associated with larger dosages of either a sulfa drug or beta blocker. Stop using the drug at once and call your doctor if a serious reaction develops.
4lt?18b)ockers may have to be discontinued prior to major surgery because they can affect the heart’s ability to respond normally. Some people taking a beta blocker experience severe reductions in blood flow while undergoing general anesthesia.
Dorzolamide should not be used by people with kidney disease and has not been studied in people with liver disease.
People with a history of severe allergic reactions who take a beta blocker may be at increased risk of experiencing a reaction because the drug blocks part of the body’s natural allergic
response.
Timolol can worsen the muscle weakness that accompanies myasthenia gravis.
Possible Side Effects
♦    Most common: changes in sense of taste, especially bitterness or sourness; increased sensitivity to light; and a burning or stinging sensation in the eye.
♦    Common: eye redness, irritation, or itching, and blurred vision.
♦    Less common: abdominal pain, back pain, eyelid inflammation, bronchitis, cloudy vision, eye discharge or swelling, conjunctivitis (pinkeye), corneal erosion, corneal staining, lens cloudiness, cough, dizziness, dry eye, upset stomach, drug particles in the eye, eye pain, tearing, eyelid scaling, eyelid pain or discomfort, sensation of something in the eye, headache, high blood pressure, influenza, lens discoloration, nausea, sore throat, cataracts, sinus irritation, respiratory infection, urinary infection, visual problems, and retinal detachment.
•    Rare: slow heartbeat, heart block or failure, chest pain, stroke, depression, diarrhea, dry mouth, breathing difficulties, low blood pressure, stuffy nose, rash, tingling in the hands or feet, kidney stones, and vomiting. Contact your doctor if you experience any side effect not listed above.
See Dorzolamide, page 200, and Timolol, page 1129, for fur-
ther side effect information.
Drug Interactions
•    If you use more than 1 eyedrop medkc;a~mn, separate doses of these drugs tai z& Y@ast 10 minutes.
•    COSOpt can increase the effect of other carbonic anhydrase inhibitors.
•    Combining Cosopt with an oral beta blocker or another calcium antagonist may increase the risk of side effects, especially changes in heart rhythm and low blood pressure.
•    Do not combine Cosopt and another beta-blocking eyedrop.
•    Combining Cosopt and reserpine can lead to low blood pressure, slowing of heartbeat, and dizziness or fainting.
•    Combining Cosopt with digitalis and a calcium antagonist, or with quinidine, can slow heartbeat.
See Dorzolamide, page 200, and Timolol, page 1129, for further drug interactions.
Usual Dose
Adult: 1 drop in the affected eye twice a day. Child: not recommended.
Overdosage
Little is known about the effects of Cosopt overdose or accidental ingestion. Possible overdose symptoms include dizziness, headache, shortness of breath, slow heartbeat, breathing difficulties, heart attack, and nervous system effects. Call your local poison control center or a hospital emergency room for more information. If you seek treatment, ALWAYS bring the prescription bottle or container.
Special Information
Conjunctivitis (pinkeye) and eyelid reactions can occur due to an allergic reaction or as the result of local irritation. If you experience either of these problems, stop using the drug and call your doctor so that your condition can be evaluated.
To prevent infection, do not allow the eyedropper to touch your fingers, eyelids, or any surface. Wait at least 10 minutes before using any other eyedrops.
Cosopt contains benzalkonium chloride (a preservative), which may be absorbed by soft contact lenses. Remove your soft contact lenses before using the eyedrops; you may put them back in 15 minutes after a dose.
If you forget a dose of Cosopt, take it as soon as you remember. If it is almost time for your next dose, skip the forgotten dose and continue with your regular schedule.
Store Cosopt away from sunlight.
Special Populations
Pregnancy/Breast-feeding: The safety of using Cosopt is not known. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
It is not known if dorMlamidle passes into breast milk, though timolol does. Nursing mothers who must use Cosopt should use
infant formula.
Seniors: Seniors may use Cosopt without precaution.

Carvedilol

Saturday, August 1st, 2009

Generic Name
Carvedilol (car-VAY-dih-lol)
Brand Names
Coreg    Coreg CR
Type of Drug  Alpha-beta-adrenergic blocker.
Prescribed For
Heart failure, high blood pressure, angina pain, and cardiomyopathy.
General Information
Carvedilol was the first beta blocker approved for heart failure. It is also the only beta blocker approved for severe heart failure.
Carvedilol blocks both the alpha- and beta-adrenergic portions of the central nervous system. This dual action reduces the amount of blood pumped with each heartbeat and also decreases the risk of tachycardia (very rapid heartbeat). Carvedilol’s beta-blocking effects begin within an hour of taking the first dose; maximum blood-pressure-lowering occurs after 1 or 2 weeks. The drug also causes blood vessels to dilate (widen), allowing the heart to pump blood more efficiently.
Cautions and Warnings
Do not take carvedilol if you are allergic or sensitive to any of its ingredients, or if you have AV block, sick sinus syndrome or severe bradycardia (slow heart rate) without the use of a pacemaker.
Carvedilol should not be taken 13y patients with bronchial disease, qQQkVaS thronic bronchitis, emphysema, or asthma.
Carvedilol therapy should not be stopped suddenly due to the risk of worsening the heart condition.
In studies, carvedilol caused mild and reversible liver injury in about 1 of every 100 people who took it. Those with severe liver disease should not take this medication. Call your doctor at once if you develop signs of liver damage (symptoms include severe itching, dark-colored urine, flu-like symptoms, appetite loss, and yellowing of the skin or whites of the eyes).
Check with your doctor about continuing carvedilol if you are to receive general anesthesia; heart function that is depressed by anesthetics can worsen if carvedilol is used at the same time.
Make sure your doctor knows if you have diabetes. Carvedilol can mask signs of low blood sugar and may increase the effects of insulin or oral antidiabetes drugs, making it more difficult to recover from the effects of low blood sugar.
Carvedilol can mask symptoms of an overactive thyroid gland. Abruptly stopping carvedilol can trigger an attack of hyperthyroidism.
Possible Side Effects
Most side effects are considered mild or moderate.
✓    Most common: dizziness, sleepiness or sleeplessness, diarrhea, abdominal pain, slow heartbeat, dizziness when rising from a sitting or lying position, swelling of the hands or feet, sore throat, breathing difficulties, tiredness, back pain, urinary infection, and viral infection.
✓    Less common: extra heartbeats; palpitations; blood-pressure changes; fainting; reduced blood supply to the arms and legs (symptoms include aches, cramps, pain, or tiredness on walking, or pain in the foot, thigh, hip, or buttocks); tingling in the hands or feet; reduced sensation; depression; nervousness; constipation; gas; liver irritation; cough; impotence and reduced sex drive in men; itching; rash; visual difficulties; ringing or buzzing in the ears; high blood cholesterol, sugar, or uric acid; anemia; weakness; hot flushes; leg cramps; dry mouth; not feeling well; sweating; and muscle ache.
✓    Rare: Rare side effects can affect the heart, mental status, the respiratory tract, the urinary tract, and the kidney. It can also cause hair loss, weight gain, high blood-triglyceride levels, low blood-platelet counts, and sugar in the urine. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
•    Carvedilol increases the effects of insulin and oral antidiabetes drugs. People taking this combination must monitor their blood sugar levels regularly. Call your doctor if there is any change from your normal pattern.
•    Carvedilol increases the effects of verapamil, diltiazem, and similar calcium-channel blocking drugs.
•    Monoamine oxidase inhibitor antidepressants may increase the effects of carvedilol.
•    Carvedilol increases the blood-pressure-lowering effect of clonidine. People taking this combination may need less clonidine to control their pressure.
•    Carvedilol increases the amount of digoxin in the blood by about 15%. Your digoxin dosage may have to be adjusted.
•    Cimetidine increases the amount of carvedilol absorbed into the blood by about 30%, but the importance of this interaction is not clear.
•    Rifampin reduces the amount of carvedilol in the blood by about 70%. Dosage adjustment is necessary.
•    Do not consume alcohol (including medicines that contain alcohol) within 2 hours of taking carvedilol.
Food Interactions
Take carvedilol with food to reduce the risk of dizziness or fainting.
Usual Dose
Heart Failure
Adult: 3.125 mg twice a day for 2 weeks. Dose may be doubled every 2 weeks to the highest level tolerated. Maximum daily dosage is 25 mg twice a day in people weighing less than 187 lbs., and 50 mg twice a day in people who weigh more.
High Blood Pressure and Cardlomyopathy
Adult: 6.25 mg twice a day to start, increased to 25 mg twice a day if needed.
Senior: Seniors may require smaller doses than younger adults. Child (under age 18): not recommended.
Overdosage
~3%rdose may lead to very low blood pressure (symptoms include dizziness and fainting), slow heartbeat and other cardiac symptoms, including shock and heart attack, breathing difficulties, bronchial spasm, vomiting, periods of unconsciousness, and seizures. Overdose victims must be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Carvedilol should be taken continuously. Do not stop taking it without your doctor’s knowledge, because abrupt withdrawal may cause chest pain, breathing difficulties, increased sweating, and unusually fast or irregular heartbeat. The dose should be gradually reduced over a period of about 2 weeks.
People taking carvedilol may become dizzy or faint when rising quickly from a sitting or lying position. If this happens to you, sit or lie down until you feel better. Carvedilol can also cause drowsiness, lightheadedness, or blurred vision. Be careful when driving or doing any task that requires concentration.
Contact lens wearers are more likely to experience dry eyes with carvedilol.
Swallow extended-release tablets whole; do not crush or break them.
It is best to take carvedilol at the same time each day. If you forget a dose, take it as soon as you remember. If it is within 4 hours of your next dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Animal studies indicate that carvedilol passes into the fetal bloodstream and may interfere with pregnancy. When this drug is considered crucial by your doctor, its potential benefits must be carefully weighed against its risks.
It is not known if carvedilol passes into human breast milk, though it passes into rat breast milk. Beta-blocking drugs like carvedilol may affect babies’ hearts. Nursing mothers who must take this drug should use infant formula.
Seniors: Seniors are more likely to develop dizziness and may require reduced dosage.

Accurate Diagnosis

Saturday, May 30th, 2009

The simplest and most certain test for any sensitivity reaction is to expose the person concerned to the substance under suspicion and see what happens. This is known as a

challenge test. With true allergies, challenge tests are powerful tools, but they are also alarmingly close to reality. The risk of provoking a severe reaction requires a very

cautious approach.
By comparison, an indirect test – a roundabout way of seeing how the body responds, such as the skin-prick test (see p. 91) – has the advantage of rarely producing dangerous

reactions. The downside is that indirect tests can be misleading, precisely because they are not like the real-life situation. No indirect test is perfect – there are always

false positives and false negatives (see box on p. 91).
Challenge tests
If you undergo a challenge test with food or an airborne allergen, you will also be given dummy challenges with an innocuous substance which is indistinguishable from the item

being tested. Neither you, nor the tester who is scoring the reaction, should know which is which. This is called a double-blind trial because, to eliminate all possible bias,

both of you are in the dark. (The full name is a ‘double-blind placebo-controlled trial’ – the dummy challenge is also called a ‘placebo challenge’ or ‘control challenge’.)
The double-blind trial is a standard medical procedure and does not imply that the doctors think you are faking symptoms. Psychological forces are powerful things, and just

thinking that you might react to a test can be enough to produce a reaction – the process that generates the symptoms is largely unconscious.
Food challenge
A food challenge – eating the food that is under suspicion – is a key test for food intolerance (see p. 197). It is sometimes used for food allergy and other forms of food

sensitivity too, as a follow-up to skin tests. Some allergists use a food challenge only if the skin test is at odds with actual events reported by the patient. Other allergists

use food challenge more readily, to confirm skin-test results, and to assess the severity of the reaction.
Extreme caution must be exercised with immediate food allergy, because of the considerable risks involved. The test must be done under medical supervision with resuscitation

equipment to hand. A challenge test should never be done for true food allergy without some careful preliminary tests on the face and the lips (see box on p. 23). Even if these

tests produce no reaction, only tiny amounts of the food should be eaten to begin with.
Bronchial challenge
This type of test involves inhalation of an airborne allergen – such as pollen – suspected of causing asthma. Bronchial challenge carries the risk of provoking a severe asthma

attack, and few doctors use it unless there are compelling reasons to do so – such as demonstrating that someone’s asthma is due to an allergen encountered at work.
Skin-prick tests
This is an indirect method of detecting true allergic reactions. It is one of a family of skin tests that use a similar approach. The three different tests in this family are

known as: skin-prick tests or prick tests, puncture tests, and scratch tests.
For the skin-prick test – the technique used in Britain – a small drop of liquid containing an allergen, such as grass pollen, is placed on the arm. The doctor makes a small

prick in the skin, under the drop of liquid, allowing a minuscule amount of the allergen to get into the skin. A positive reaction is recorded if a red bump develops soon

afterwards. For accuracy, the bump must be compared to positive and negative controls (see below).
The puncture method is very similar to the skin-prick test but uses a slightly different technique for breaking the skin. The term prick-puncture test covers both techniques.
With the scratch method, the skin is scratched lightly, and the allergen solution is then applied over the scratch. This method gives less consistent results than prick-puncture

testing.
It is important to include a negative control in the test – a skin-prick test with plain salt water (saline). This should not produce much of a bump – if it does, the skin is

clearly over-reactive and the tests more difficult to assess. The doctor should also include a positive control – a skin-prick test with histamine, the substance that plays a

central role in allergic reactions. This should always produce a bump. If it does not, the skin is decidedly under-reactive, and the tests are invalid.
Taking antihistamines will make the skin under-reactive, and you should stop taking them before the testing, for a period ranging from a day to several weeks – it varies

depending on the particular antihistamine. Ask your doctor for specific instructions about stopping these and other drugs before testing.
Skin tends to be over-reactive to testing in people with dermatographism (see p. 52). Blood tests for specific IgE,
such as RASTs (see p. 92), are needed for anyone who has this condition. Eczema sufferers with a rash over large areas of the body may also require blood tests, if there is too

little clear skin for testing.
Skin-prick tests can produce both false positives and false negatives (see box below). Some allergic diseases will give a lot of false negatives and relatively few false

positives, while for others the reverse is true. The allergen itself influences the rates of misleading reactions: for example, tests for soya allergy are notoriously

unreliable, whereas those for peanut are far more accurate. The age of the person being tested also makes a difference. With all these influences at work, interpreting the test

responses is a real art, and the doctor’s experience counts for a lot.
All sorts of people offer skin-prick tests, including alternative practitioners. Get them done by a qualified doctor, preferably by an allergist, who will know how to make sense

of the reactions.
Note that the purpose of these tests, and of blood tests for specific IgE, is to identify the allergens that are bringing on your symptoms, not to predict how strongly you will

react to those allergens. The tests may give some Indication of the intensity of your reaction, but they cannot be regarded as a good guide to how you will respond to the

allergen in the future.
The safety record of skin-prick tests is very good. Occasionally a systemic reaction (anaphylaxis) occurs with these tests, but there are no records of any deaths. Nevertheless,

if you suffer from severe asthma or have experienced anaphylactic shock in the past, it is advisable for the doctor to have adrenaline and resuscitation equipment available.

Those with strong allergic reactions to latex may also react badly if they are tested with an allergen that cross-reacts with latex (e.g. cypress pollen), not just when tested

with latex itself. Taking beta-Mockers (see box on p. 150) increases the risk of a life-threatening reaction for anyone in these higher-risk categories.
False positives and false negatives
Apart from challenge tests, none of the tests used for allergy works with 100% accuracy. Most give both false positives and false negatives.
A false positive means that there is a positive test but no actual reaction when the allergen is encountered (e.g. eaten or inhaled). A false negative means that there is a

negative test result despite a genuine reaction (as shown by a challenge test, for example).
A test that gives relatively few false positives has good positive predictive value – in other words, if it suggests you are allergic to something, you probably are.
A test that gives relatively few false negatives has good negative predictive value. If it comes up negative, you are probably not allergic to that allergen.
Some tests for allergic reactions show good positive predictive value but poor negative predictive value, while for other tests the reverse is true.