• Headache · Oct 2002

    Randomized Controlled Trial Comparative Study Clinical Trial

    Intravenous dipyrone in the acute treatment of migraine without aura and migraine with aura: a randomized, double blind, placebo controlled study.

    • Marcelo E Bigal, Carlos A Bordini, Stewart J Tepper, and José G Speciali.
    • Department of Neurology, Albert Einstein College of Medicine, Bronx, New York, USA.
    • Headache. 2002 Oct 1; 42 (9): 862-71.

    BackgroundDipyrone (Metamizol) has been used in the acute treatment of migraines in Brazil. Some investigators have found it to be a highly effective medication for migraine pain and associated symptoms.ObjectiveTo conduct a randomized, placebo controlled, double blind study to assess the effect of dipyrone on the pain and symptoms associated with migraine without aura or with aura and the adverse effect profile of this medication.MethodsFor the migraine without aura group, 44 patients were assigned at random to receive 1 g intravenous dipyrone, and 30 patients received 10 mL 0.9% physiological saline. For the migraine with aura group, 30 patients received both dipyrone or placebo. We used seven parameters of analgesic evaluation and an analog scale to assess nausea, photophobia, and phonophobia.ResultsPatients receiving dipyrone demonstrated a statistically superior improvement (P<.05 and P<.01) in pain and all associated symptoms compared with control subjects.ConclusionsDipyrone is an effective drug for the relief of acute migraine pain and associated symptoms.

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