title: Orthostatic hypotension due to quinidine and atenolol.
mesh_terms: D001262:Atenolol / Q000008:administration & dosage / Q000009:adverse effects*; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D007024:Hypotension, Orthostatic / Q000139:chemically induced*; D008875:Middle Aged; D011802:Quinidine / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D001262:Atenolol; D011802:Quinidine