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Medications and Drugs

Brand Names: Glauctabs, MZM, Neptazane

Generic Name: methazolamide (Pronunciation: meth a ZOLE a mide)

What is methazolamide (Glauctabs, MZM, Neptazane)?

Methazolamide is a carbonic anhydrase inhibitor. Carbonic anhydrase is a protein in the body. Methazolamide reduces the activity of this protein.

Methazolamide is used to treat glaucoma. By inhibiting the actions of carbonic anhydrase, methazolamide reduces the amount of fluid produced in the eyes and therefore also reduces pressure.

Methazolamide may also be used for purposes other than those listed in this medication guide.

Methazolamide 25 mg-TEV

square, white, imprinted with COPLEY, 411

Methazolamide 50 mg-ESI

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Methazolamide 50 mg-TEV

round, white, imprinted with COPLEY 424

What are the possible side effects of methazolamide (Glauctabs, MZM, Neptazane)?

If you experience any of the following serious side effects, stop taking methazolamide and seek emergency medical attention or contact your doctor immediately:

Other, less serious side effects may be more likely to occur. Continue to take methazolamide and talk to your doctor if you experience

  • decreased appetite, nausea, vomiting, constipation, diarrhea, or changes in taste;
  • drowsiness, dizziness, fatigue, or weakness;
  • nervousness or tremor;
  • headache or confusion;
  • increased sensitivity of the skin to sunlight;
  • worsening gout;
  • loss of blood sugar control (if you are diabetic);
  • ringing in your ears or hearing problems; or
  • changes in vision.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about methazolamide (Glauctabs, MZM, Neptazane)?

Contact your doctor immediately if you experience a sore throat, fever, unusual bleeding or bruising, tingling or tremors in the hands or feet, pain in the side or groin, or a rash. These symptoms could be early signs of a serious side effect.

Use caution when driving, operating machinery, or performing other hazardous activities. Methazolamide may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.

Avoid prolonged exposure to sunlight. Methazolamide may increase the sensitivity of the skin to sunlight. Use a sunscreen and wear protective clothing when exposure to the sun is unavoidable.

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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