Which of the following is selective alpha antagonist?: (A) Propanolol, (B) Prazosin, (C) Phentolamine, (D) Clonidine
Answer is B. Ans. B. PrazosinPrazosin is selective alpha 1 blocker which used in patients suffering from BHP. They also used in hypertension. Phentolamine is nonselective alpha blocker. Clonidine is alpha 2 agonists.