Acetazolamide
Why has my veterinarian prescribed this medicine?
This medicine may be prescribed to treat glaucoma - a disease of the eye that increases intraocular pressure and produces defects in the field of vision. Acetazolamide will reduce the amount of pressure in the eye.
This medication may also be used as a diuretic (to remove water from the body and increase the amount of urine produced).
How do I give this medication?
"Wear gloves when administering this medication if you are sensitive to sulfa drugs."
- Give this medicine to your pet as directed by your veterinarian. READ THE LABEL CAREFULLY.
- If the pet experiences stomach upset, give the medication with food. If stomach upset continues, contact your veterinarian.
- DO NOT give your pet more medicine than directed.
- DO NOT give the drug more often than directed.
- If the pet requires more than one dose a day, try to give the last dose by early evening, unless otherwise indicated by your veterinarian. This will minimize the number of times the cat needs to be let out at night.
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Wear gloves when administering this medication if you are sensitive to sulfa drugs.
What if I miss giving a dose?
Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give the pet two doses at once.
How do I store this medicine?
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Keep this medicine out of reach of children.
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Store this medicine in a cool, dry place at room temperature.
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Do not store this medicine in the bathroom, near the kitchen sink or in damp places. The medicine may break down if exposed to heat or moisture.
Are there any potential side effects?
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This medication may cause stomach upset. If this occurs, give the medicine with food.
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Diarrhea may occur. If this continues, contact your veterinarian.
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Your pet may urinate more often.
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This medicine may cause some animals to feel tired, confused or depressed
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The animal may experience pain when urinating. If this occurs, contact your veterinarian.
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If your pet experiences breathing problems, weakness, disorientation, abnormal bleeding or bruising or behavior changes check with your veterinarian immediately.
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Other side effects may occur. If you notice anything unusual, contact your veterinarian.
What are the possible drug interactions?
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Make sure to tell your veterinarian what other medication or supplements you are giving to your pet.
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Quite often, your veterinarian may prescribe two different medications, and sometimes a drug interaction may occur. In this case, your veterinarian may vary the dose and/or monitor your pet more closely.
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Use acetazolamide with caution when administering the following drugs: primidone, phenytoin, quinidine, procainamide, phenobarbital, methotrexate, methenamine, corticosteroids (e.g. prednisone, dexamethasone), amphotericin B and other diuretics (e.g. hydrochlorothiazide).
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Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.
© Copyright 2025 LifeLearn Inc. Used and/or modified with permission under license. This content written by LifeLearn Animal Health (LifeLearn Inc.) is licensed to this practice for the personal use of our clients. Any copying, printing or further distribution is prohibited without the express written consent of LifeLearn. This content does not contain all available information for any referenced medications and has not been reviewed by the FDA Center for Veterinary Medicine, or Health Canada Veterinary Drugs Directorate. This content may help answer commonly asked questions, but is not a substitute for medical advice, or a proper consultation and/or clinical examination of your pet by a veterinarian. Please contact your veterinarian if you have any questions or concerns about your pet’s health. Last updated on Jul 8, 2016.