Orthostatic hypotension due to prazosin.
D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D007024:Hypotension, Orthostatic / Q000139:chemically induced*; D011224:Prazosin / Q000009:adverse effects* / Q000627:therapeutic use; D011799:Quinazolines / Q000009:adverse effects*
D011799:Quinazolines; D011224:Prazosin