Acetazolamide

Carbonic Anhydrase Inhibitor
Drug Class
Carbonic Anhydrase Inhibitor
Mechanism of Action (MOA)
Inhibits carbonic anhydrase → ↓ aqueous humor and bicarbonate reabsorption → ↓ intraocular pressure and mild diuresis.
Clinical Notes
Open-angle and secondary glaucoma, and preoperatively in acute angle-closure; acute mountain sickness prophylaxis; also edema and epilepsy. Sulfonamide; metabolic acidosis, paresthesias, hypokalemia, nephrolithiasis.
Source
FDA label

Sources

Reviewed September 2026
  1. FDA label — FDA / DailyMed

Checked against the guideline or standard reference the exam keys to. If it has moved, use Report an error below.

Used for

Same family

Diuretics · 4 drugs

Got a pharmacology lecture that covers Acetazolamide? Turn it into flashcards and board-style questions, free. Drop it on the home page

All pharmacology