$Unique_ID{BRK03012} $Pretitle{} $Title{acetazolamide} $Subject{AK-Zol Akorn Dazamide Major Lederle Diamox Sequels Carbonic anhydrase inhibitor acetazolamide glaucoma epilepsy edema fluid retention mountain sickness} $Volume{} $Log{} Copyright (C) 1993 Publications International, Ltd. acetazolamide ------------------------------------------------------------------------------ BRAND NAMES (Manufacturers) acetazolamide (various manufacturers) AK-Zol (Akorn) Dazamide (Major) Diamox (Lederle) Diamox Sequels (Lederle) TYPE OF DRUG Carbonic anhydrase inhibitor INGREDIENT acetazolamide DOSAGE FORMS Tablets (125 mg and 250 mg) Sustained-release capsules (500 mg) STORAGE Acetazolamide tablets and capsules should be stored at room temperature in tightly closed containers. USES This medication is used to treat glaucoma, epilepsy, and edema (fluid retention) and to prevent or treat the symptoms of mountain sickness. TREATMENT In order to avoid stomach irritation, you can take acetazolamide with food or with a full glass of water or milk (unless your doctor directs you to do otherwise). The sustained-release form of this medication should be swallowed whole. Chewing, crushing, or breaking these capsules destroys their sustained-release activity and possibly increases the side effects. If you miss a dose of this medication, take the missed dose as soon as possible, unless it is almost time for the next dose. In that case, do not take the missed dose; just return to your regular dosing schedule. Do not double the next dose. SIDE EFFECTS Minor. Confusion, drowsiness, increased urination, loss of appetite, or a tingling feeling. These side effects should disappear as your body adjusts to the medication. Major. Tell your doctor about any side effects that are persistent or particularly bothersome. IT IS ESPECIALLY IMPORTANT TO TELL YOUR DOCTOR about back pain; bloody or black, tarry stools; blurred vision; convulsions; difficult or painful urination; fever; rash; unusual bleeding or bruising; or yellowing of the eyes or skin. INTERACTIONS Acetazolamide interacts with other types of medications: 1. Acetazolamide can decrease the excretion through the kidneys of amphetamines, ephedrine, flecainide, mexiletine, pseudoephedrine, tocainide, and quinidine, which can lead to an increased risk of side effects with these medications. Acetazolamide can also increase the side effects (to the bones) of phenobarbital, phenytoin, and primidone. 2. Dosage adjustments of insulin or oral antidiabetic medications may be necessary when this medication is started. 3. The therapeutic benefits of methenamine, methotrexate, lithium, or large doses of aspirin may be decreased by acetazolamide. Before starting to take acetazolamide tablets or capsules, BE SURE TO TELL YOUR DOCTOR about any medications that you are currently taking, especially any of the medications that are listed above. WARNINGS * Tell your doctor about unusual or allergic reactions you have had to any medications, especially to acetazolamide, methazolamide, sulfonamide antibiotics, diuretics (water pills), oral antidiabetics, dapsone, sulfone, or sulfoxone. * Before starting to take this medication, be sure to tell your doctor if you now have or if you have ever had acidosis, Addison's disease (underactive adrenal gland), chronic lung disease, diabetes mellitus, electrolyte disorders, gout, kidney disease, or liver disease. * If this drug makes you dizzy or drowsy, avoid taking part in any activity that requires alertness, such as driving a car or operating potentially dangerous equipment. * Although several generic versions of this drug are available, you should not switch from one brand to another without your doctor's or pharmacist's approval. Not all of these products are equivalent. * Tolerance to this drug can develop quickly. Check with your doctor if you feel this drug is losing effectiveness. * Be sure to tell your doctor if you are pregnant. Although this drug appears to be safe in humans, birth defects have been reported in the offspring of animals that received large doses during pregnancy. Also, tell your doctor if you are breast-feeding an infant. It is not known whether acetazolamide passes into breast milk. ---------------- The material contained here is "FOR INFORMATION ONLY" and should not replace the counsel and advice of your personal physician. Promptly consulting your doctor is the best path to a quick and successful resolution of any medical problem.