Active Ingredient

Acetazolamide

Acetazolamide is a medication primarily used to reduce fluid buildup and pressure in the body. It is often prescribed for conditions related to fluid retention and pressure management.

This medication helps in managing specific medical conditions where fluid control is essential.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Acetazolamide Brands

Diamox

Strengths 250mg

Acetazolamide Uses

Acetazolamide is used in various medical situations to help control fluid and pressure levels in the body.

Glaucoma, to reduce eye pressure
Altitude sickness prevention
Edema due to heart failure
Seizure disorders
Periodic paralysis

How Acetazolamide Works

Acetazolamide works by inhibiting the enzyme carbonic anhydrase. This action reduces the production of certain fluids in the body.

By decreasing fluid production, it helps lower pressure in the eyes and other areas.

This mechanism also assists in balancing electrolytes and managing fluid retention.

Common side effects of Acetazolamide

Not everyone experiences side effects with acetazolamide, and many of them are mild and temporary.

Dizziness
Nausea
Fatigue
Diarrhea
Loss of appetite
Metallic taste
Increased urination

If you experience serious or persistent side effects, contact your doctor for advice.

Monitor for any unusual changes in mood or behavior and report them to your doctor.
Avoid alcohol as it can increase certain side effects.
Inform your doctor about all medications you are taking to avoid interactions.
Do not drive or operate heavy machinery if you feel dizzy or drowsy.
Stay hydrated, but follow your doctor’s advice on fluid intake.

Always consult your doctor for personalized medical advice and before starting any new medication.

Frequently Asked Questions

What is acetazolamide used for?

Acetazolamide is used to treat conditions like glaucoma, altitude sickness, and certain types of edema and seizures.

How does acetazolamide help with altitude sickness?

Acetazolamide helps prevent altitude sickness by reducing fluid buildup and pressure, aiding in acclimatization.

Can acetazolamide cause dizziness?

Yes, dizziness is a common side effect of acetazolamide. If it persists, consult your doctor.

Is it safe to drink alcohol while taking acetazolamide?

It’s best to avoid alcohol as it can increase the risk of side effects like dizziness and drowsiness.

How should I store acetazolamide?

Store acetazolamide at room temperature, away from moisture and heat, and keep it out of reach of children.