<prompt> A male patient presents with headache , profuse sweating and palpitations with a blood pressure of 180120 mmHg . The drug of choice would beNifedipineLabetalolPrazocinPhenoxy benzamine  <response>: Ref Harrison 19 th ed pg 1627 Symptomatic hypeension with diastolic pressure of 120 suggests a diagnosis of hypeensive emergency . Labetalol IV is the drug of choice for management of hypeensive emergency. 