Diamox (generic: acetazolamide) is a prescription medication used in combination with other medications to treat high blood pressure, and fluid retention caused by congestive heart failure or kidney disease. This medication may also be used to treat glaucoma, symptoms of mountain sickness, and to control certain types of seizures of epilepsy. Diamox belongs to a group of drugs called diuretics ("water pills"), which help the body get rid of excess fluid  by increasing the amount of salt and water the kidneys remove from the blood.

This medication comes in tablet form and is usually taken once daily (for doses at or below 375 mg), with or without food. At higher doses, Diamox may be divided into several doses taken throughout the day.  Diamox is also available in an extended-release (long acting) capsule form (Diamox Sequels) for which there is a separate article on RxWiki.

Common side effects include a tingling feeling in the legs and arms, ringing in the ears, and loss of appetite. Diamox may cause drowsiness. Do not drive or operate heavy machinery until you know how it affects you.