FDA label
What is acetazolamide used for?
The FDA-approved uses of acetazolamide, quoted from the Indications and Usage section of its DailyMed label.
Source: DailyMed SPL label file dated 2026-10-23. Publisher page
The FDA label says: “For adjunctive treatment of: edema due to congestive heart failure; drug-induced edema; centrencephalic epilepsies (petit mal, unlocalized seizures); chronic simple (open-angle) glaucoma, secondary glaucoma, and preoperatively in acute angle-closure glaucoma where delay of surgery is desired in order to lower intraocular pressure. Acetazolamide tablets are also indicated for the prevention or a...”
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Acetazolamide, tablet
Indications and Usage, quoted from the label by Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. (ANDA205530). Cross-references to other label sections are left out.
For adjunctive treatment of: edema due to congestive heart failure; drug-induced edema; centrencephalic epilepsies (petit mal, unlocalized seizures); chronic simple (open-angle) glaucoma, secondary glaucoma, and preoperatively in acute angle-closure glaucoma where delay of surgery is desired in order to lower intraocular pressure. Acetazolamide tablets are also indicated for the prevention or amelioration of symptoms associated with acute mountain sickness in climbers attempting rapid ascent and in those who are very susceptible to acute mountain sickness despite gradual ascent.
Source: DailyMed label, set id 0700a910-79aa-4431-aecf-637fe14fcae8, version 11, effective May 12, 2026. NDC 23155-287, one of 50 listings for this product.
Acetazolamide, capsule, extended release
Indications and Usage, quoted from the label by Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. (ANDA040904). Cross-references to other label sections are left out.
For adjunctive treatment of: chronic simple (open-angle) glaucoma, secondary glaucoma, and preoperatively in acute angle-closure glaucoma where delay of surgery is desired in order to lower intraocular pressure. Acetazolamide extended-release capsules are also indicated for the prevention or amelioration of symptoms associated with acute mountain sickness despite gradual ascent.
Source: DailyMed label, set id 33d912ea-9e1c-49eb-bd93-f0b1b2da67b6, version 5, effective February 26, 2026. NDC 23155-787, one of 10 listings for this product.
Questions
What is acetazolamide used for?
The FDA label says: “For adjunctive treatment of: edema due to congestive heart failure; drug-induced edema; centrencephalic epilepsies (petit mal, unlocalized seizures); chronic simple (open-angle) glaucoma, secondary glaucoma, and preoperatively in acute angle-closure glaucoma where delay of surgery is desired in order to lower intraocular pressure. Acetazolamide tablets are also indicated for the prevention or a...”
What drug class is acetazolamide?
FDA lists acetazolamide in the Carbonic Anhydrase Inhibitor established pharmacologic class.
Does this page cover off-label uses or dosing?
No. This page shows only the Indications and Usage section of the FDA label. Ask a pharmacist or prescriber about dosing.