Which of the following is a selective Beta 2 antagonist?: (A) Esmolol, (B) Betaxolol, (C) Butoxamine, (D) Celiprolol
Answer is C. Esmolol, Betaxolol, Celiprolol are cardioselective beta 1 blockers. Butoxamine is a selective beta 2 blocker. From essential of medical pharmacology K D Tripathi 7th edition page no 144