All of the following are alpha-adrenergic receptor blockers EXCEPT one. Which one is the exception?

• Correct answer

  Propranolol (Inderal)

• Doxazosin (Cardura)

• Phenoxybenzamine hydrochloride (Dibenzyline)

• Phentolanine hydrochloride (Regitine)

• Prazosin (Minipress)

• Terazosrn (Hytrin)