Acetazolamide is: (A) Competitive and reversible carbonic anhydrase inhibitor, (B) Non-competitive and reversible carbonic anhydrase inhibitor, (C) Competitive and irreversible carbonic anhydrase inhibitor, (D) Non-competitive and irreversible carbonic anhydrase inhibitor
Answer is B. Carbonic anhydrase inhibitor act by non-competitive but reversible inhibition of the enzyme. Examples include acetazolamide,dorazolamide and brinzolamide.