Key takeaways
Methazolamide and furosemide (Lasix) are both medications that can help with certain health conditions, but they work in different ways and are used for different purposes. Methazolamide is a carbonic anhydrase inhibitor used to lower eye pressure in conditions like glaucoma. It is taken as a tablet two or three times a day. Furosemide, on the other hand, is a loop diuretic, or water pill, that helps reduce swelling from fluid buildup and can also lower blood pressure. It is usually taken once or twice a day and is available as both a tablet and an oral solution. Both medications can cause you to urinate more frequently. Methazolamide can also cause side effects like tingling in the arms or legs and ringing in the ears, and furosemide may lead to dizziness and sun sensitivity. People with a sulfa allergy should avoid taking furosemide. Both medications are available as lower-cost generics.
