Medical Marijuana May Help Fibromyalgia Pain


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Lynda, a 48-year-old mother of three who lives in upstate New York, was diagnosed with fibromyalgia in 2000. While there are prescription medications for fibromyalgia, shes found one unconventional drug—marijuana—that really does the trick.

“I would use [marijuana] when the burning pains started down my spine or my right arm, and shortly after, I found I could continue with housework and actually get more done,” says Lynda.

Fibromyalgia is notoriously difficult to treat and only 35%–40% of people with the chronic pain condition get relief from the available medications. Although there are strong opinions surrounding its use, some patients are trying marijuana—legally or illegally—and finding it can help fibromyalgia pain.

“My patients are asking me all the time about it,” says Stuart Silverman, MD, a clinical professor of medicine and rheumatology at Cedars-Sinai Medical Center, in Los Angeles. “Historically and anecdotally, marijuana has been used as a painkiller.”

Why marijuana sometimes helps
Our bodies naturally make pain relievers called endorphins, but they also make other substances that can trigger pain relief in the so-called endocannabinoid system. This system seems to play a key role in many processes in the body, including modulating how we feel pain. Marijuana contains cannabinoids very similar to those that occur in the body naturally.

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Fibromyalgia patients typically experience body-wide pain, but they must often take multiple drugs for other symptoms, which can include difficulty sleeping, restless legs syndrome, depression, and anxiety. However, marijuana may treat multiple symptoms, and some patients are seeing results.

It seems logical—why shouldnt fibromyalgia sufferers try marijuana for their symptoms, if they live in a state where medical marijuana is legal?

But there are two problems with herbal cannabis, Dr. Silverman and other critics say: Its a complex natural substance that contains about 60 different compounds with potentially medicinal effects, some of which may interact with one another. The other problem is that the amount of these various compounds may vary by batch, as marijuana is not synthesized but grown.

While Dr. Silverman says he has great hopes that synthetic medicines based on individual compounds in cannabis may one day help fibromyalgia patients (after appropriate randomized controlled clinical trials have been done), he argues that the real thing today is just too inconsistent.

“We think that theres probably a role for that class of compounds, the cannabinoids in general, and its just a question of working out how thats going to be put into practice,” says Mark Ware, MD, an assistant professor in family medicine and anesthesia at McGill University, in Montreal, and the executive director of the Canadian Consortium for the Investigation of Cannabinoids.


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Lead writer: Anne Harding
Last Updated: February 18, 2010

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