The C.A.M. Report
Complementary and Alternative Medicine: Fair, Balanced, and to the Point
  • About this web log

    This blog ran from 2006 to 2016 and was intended as an objective and dispassionate source of information on the latest CAM research. Since my background is in pharmacy and allopathic medicine, I view all CAM as advancing through the development pipeline to eventually become integrated into mainstream medical practice. Some will succeed while others fail. But all are treated fairly here.

  • About the author

    John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at www.Vicus.com, a complementary and alternative medicine website.

  • Common sense considerations

    The material on this weblog is for informational purposes. It is not medical advice or counsel. Be smart, consult your health professional before using CAM.

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    Magnesium to treat migraine

    Intravenous administration of magnesium sulfate (Mg) has been useful for migraine relief in some people, but the data are spotty.

    Here’s what we have learned in the past 5 years regarding the use of Mg in patients having an ongoing migraine attack. A summary of four studies.

    First the good news. There is evidence that Mg is effective at a dose of 1 gram injected over 15 to 20 minutes.

    Study 1: All patients treated with Mg responded

    • Pain disappeared in 13 and diminished in 2
    • Symptoms disappeared in all patients
    • When those initially treated with placebo were then treated with Mg, pain disappeared in 14 and pain intensity decreased on one.

    Study 2: Mg was effective in migraineurs with aura

    • Migraineurs with aura getting Mg had significant improvement in pain and associated symptoms compared to placebo
    • In the absence of aura, the response was limited to lower intensity of photophobia and phonophobia

    But, in two other studies here and here, Mg was not effective at a higher dose of 2 grams

    • No difference in pain
    • Similar recurrence rate at 24 hours
    • Mg appeared to lessen the effectiveness of metoclopramide in relieving migraine

    To sum up. Mg 1 gram was effective in one study and in a subpopulation of migraineurs with aura in another. Higher doses were not effective in two studies.

    Magnesium is not justified as primary therapy for existing migraine, although it might be used as an adjunct.

    Illustration: Informations-sante La migraine

    8/22/06 0:37 JR

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