title: Profound bradycardia with verapamil and halothane.
mesh_terms: D000368:Aged; D000769:Anesthesia, Inhalation / Q000009:adverse effects*; D001919:Bradycardia / Q000139:chemically induced*; D005260:Female; D006221:Halothane / Q000009:adverse effects*; D006801:Humans; D007431:Intraoperative Complications / Q000209:etiology; D014700:Verapamil / Q000009:adverse effects*
chemical_list: D014700:Verapamil; D006221:Halothane