<prompt> True regarding acetazolamide is ?Irreversible inhibitor of carbonic anhydraseStructural resemblance to sulfonamidesIt decreases Na, K, Glucose excretionIt causes metabolic alkalosis  <response>: Ans. is b i.e., Structural resemblance to sulfonamides o Acetazolamide is sulfonamide derivatives and, like other sulfonamides, may cause bone marrow depression, skin toxicity, sulfonamide like renal lesions, and allergic reactions in patients hypersensitive to sulphonamides. o Acetazolamide is reversible inhibitor of carbonic anhydrase. o It causes metabolic acidosis net alkalosis. o K excretion is increased. 