title: Some circulatory and respiratory effects of morphine in patients without pre-existing cardiac disease.
abstract: Haemodynamic and respiratory effects of i.v. morphine (10 mg/70kg body weight) were studied in 10 adults with unimpaired circulatory function. There were significant changes in mean arterial pressure, mean heart rate, respiratory rate and tidal volume, at 10-, 30- and 60-min intervals. Transient changes in mean total systemic resistance and mean stroke volume were also seen at 10 min. The results strongly suggest a peripheral vasodilator response to morphine. Respiratory depression was not demonstrated.
mesh_terms: D000328:Adult; D003864:Depression, Chemical; D005260:Female; D006439:Hemodynamics / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000494:pharmacology*; D012119:Respiration / Q000187:drug effects*; D013997:Time Factors; D014664:Vasodilation
chemical_list: D009020:Morphine