Orthostatic hypotension due to quinidine and propranolol.
D006801:Humans; D007024:Hypotension, Orthostatic / Q000139:chemically induced*; D011433:Propranolol / Q000009:adverse effects*; D011802:Quinidine / Q000009:adverse effects*
D011433:Propranolol; D011802:Quinidine