title: Electrophysiological effects of blocking and stimulating the opioid system in patients with unexplained heart palpitations.
authors.forename: K G
authors.initials: KG
authors.lastname: Oldroyd
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000701:Analgesics, Opioid / Q000627:therapeutic use*; D004562:Electrocardiography / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D009020:Morphine / Q000627:therapeutic use; D009270:Naloxone / Q000627:therapeutic use; D009292:Narcotic Antagonists / Q000627:therapeutic use*; D010423:Pentazocine / Q000627:therapeutic use; D011957:Receptors, Opioid / Q000187:drug effects*; D017180:Tachycardia, Ventricular / Q000188:drug therapy / Q000209:etiology / Q000503:physiopathology*
chemical_list: D000701:Analgesics, Opioid; D009292:Narcotic Antagonists; D011957:Receptors, Opioid; D009270:Naloxone; D009020:Morphine; D010423:Pentazocine