title: A comparative study of intramuscular buprenorphine and morphine in the treatment of chronic pain of malignant origin.
abstract: 1 Twenty-seven patients with moderate to severe chronic pain of malignant origin received buprenorphine (0.3 mg) and morphine (10 mg) intramuscularly in a double-blind, single dose within patient study. 2 Efficacy analysis demonstrated no significant differences in the peak analgesic effects or in the time to reach these effects. However, buprenorphine had a significantly longer duration of action than morphine. 3 Sedation was the most frequent unwanted effect with a similar incidence following each treatment. Buprenorphine was associated with a significantly higher incidence, greater severity, earlier onset, and longer duration of dizziness, nausea and vomiting than morphine. 4 Following both treatments there were small but significant decreases in pulse rate, blood pressure, and respiratory rate.
mesh_terms: D000328:Adult; D000368:Aged; D002047:Buprenorphine / Q000008:administration & dosage* / Q000009:adverse effects; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D008875:Middle Aged; D009019:Morphinans / Q000008:administration & dosage*; D009020:Morphine / Q000008:administration & dosage* / Q000009:adverse effects; D009369:Neoplasms / Q000150:complications*; D010148:Intractable Pain / Q000188:drug therapy* / Q000209:etiology; D013997:Time Factors
chemical_list: D009019:Morphinans; D002047:Buprenorphine; D009020:Morphine