-aspirin and aspirin-like medicines
-diuretics
-lithium
-mexiletine
-pseudoephedrine
-quinidine
-steroid medicines like prednisone or cortisone
-stimulant medicines like amphetamine, dextroamphetamine, ephedra

They need to know if you have any of these conditions:

-kidney disease
-liver disease
-low adrenal gland function
-low levels of potassium or sodium in your blood
-lung or breathing disease (COPD, chronic bronchitis, emphysema)
-an unusual or allergic reaction to methazolamide, sulfa drugs, other drugs, foods, dyes or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Visit your health care provider for regular checks on your progress. Tell your health care provider if your symptoms do not start to get better or if they get worse.
Check with your health care provider if you have severe diarrhea, nausea, and vomiting, or if you sweat a lot. The loss of too much body fluid may make it dangerous for you to take this drug.
You may need to be on a special diet while you are taking this drug. Ask your health care provider. Also, find out how many glasses of fluids you need to drink each day.
This drug may cause serious skin reactions. They can happen weeks to months after starting the drug. Contact your health care provider right away if you notice fevers or flu-like symptoms with a rash. The rash may be red or purple and then turn into blisters or peeling of the skin. Or, you might notice a red rash with swelling of the face, lips or lymph nodes in your neck or under your arms.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. Do not stand up or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.

Keep out of the reach of children and pets.
Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Throw away any unused drug after the expiration date.