Which of the following drugs inhibit platelet cyclooxygenase reversibly?: (A) Alprostadil, (B) Aspirin, (C) Ibuprofen, (D) Prednisolone
Answer is C. NSAID'S Inhibit COX enzyme reversibly, Except Aspirin which is an irreversible inhibitor of this enzyme . Alprostadil -PGE1 and prednisolone do not inhibit cox enzyme .