Key takeaways
Methazolamide and dorzolamide are both carbonic anhydrase inhibitors used to lower eye pressure and treat glaucoma. Methazolamide is an oral tablet typically taken 2 or 3 times a day, while dorzolamide is an eye drop used 3 times daily. Methazolamide can cause side effects like tingling in the arms or legs, ringing in the ears, and stomach upset. Methazolamide may also interact with certain medications like aspirin and corticosteroids such as prednisone. On the other hand, dorzolamide may cause temporary burning or stinging in the eyes, a bitter taste, and bacterial infections if the bottle gets contaminated. Methazolamide is not typically a first-choice option due to its many potential side effects, whereas dorzolamide is often used in combination with other eye drops for convenience.
