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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
Intravenous chlorpromazine vs intravenous metoclopramide in acute migraine headache.
- J D Cameron, P L Lane, and M Speechley.
- Department of Emergency Medicine, St. Joseph's Health Center, London, Ontario, Canada.
- Acad Emerg Med. 1995 Jul 1;2(7):597-602.
ObjectiveTo compare the efficacy of IV chlorpromazine with that of IV metoclopramide in the treatment for acute migraine headache in the ED.MethodsA prospective randomized double-blind trial was undertaken at two university-affiliated urban EDs with a combined annual census of more than 85,000 patients. Included in the study were patients presenting to the ED with a diagnosis of migraine headache. The subjects were randomized to receive 0.1 mg/kg/dose IV of either chlorpromazine (CPZ) or metoclopramide (MC), up to a total of three doses.ResultsNinety-one patients completed the protocol; 44 received MC and 47 received CPZ. The demographics of the two groups were similar. Both drugs provided, for the majority of patients, adequate pain relief as measured on a visual analog scale (VAS) completed every 15 minutes from T = 0 minutes to T = 45 minutes. The average pain relief over 45 minutes (delta VAS) for CPZ was 4.87 cm, vs 4.34 cm for MC (p = 0.35). There also was no statistically significant difference in blood pressure (BP) changes (delta BP < 2 mm Hg for both systolic and diastolic BPs, p = 0.47 and 0.33) or numbers of patients reporting adverse effects (AEs) (CPZ: 16 of 35; MC: 13 of 29, p = 0.43). There was no severe AE with either study drug.ConclusionsMetoclopramide and chlorpromazine administered IV are both effective in the management of acute migraine headache. They are associated with similar minor side-effect profiles.
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