Minnesota doctors are split on medical use of marijuana

  • Article by: JEREMY OLSON , Star Tribune
  • Updated: March 4, 2014 - 5:47 AM

The divisive issue is heading to the Minnesota Legislature today.

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Legalizing marijuana for medical use has reached the political front burner in Minnesota, prompting the state’s largest doctors’ group to bring fresh scrutiny to the benefits, the risks and the underlying science.

The challenge, physicians say, is reconciling anecdotal reports that marijuana can relieve pain and nausea in severely ill patients with the absence of rigorous, high-quality studies of the kind normally used to evaluate medications.

“We’ve never taken a stance for or against because it’s never gotten to this level,” said Dr. David Thorson, chairman of the Minnesota Medical Association (MMA) board of trustees. “It’s something that can be somewhat divisive among physicians as well.”

With the Minnesota House scheduled to hold its first hearing on the question Tuesday, the MMA has arranged a forum for its members Tuesday night and will consider taking a formal position later this year.

Minnesota would become the 21st state to legalize medical marijuana, under a bill submitted by Rep. Carly Melin, DFL-Hibbing, and public opinion polls show support for legalization.

Small studies and anecdotal reports suggest a variety of benefits from marijuana, and that its chemical ingredient THC — known for producing euphoria in casual smokers — helps reduce nerve pain for patients with multiple sclerosis, address severe nausea for patients undergoing chemotherapy and relieve pain with end-stage cancers.

Marijuana also appears, via THC, to improve appetite for patients who otherwise struggle to eat due to the effects of end-stage cancer or HIV infections.

“They just don’t want to eat and they waste away,” said Dr. Jacob Mirman, an alternative medicine specialist based in St. Louis Park. “So they smoke a little pot and they get the munchies and it’s very beneficial for them.”

Roadblocks to studies

Trouble is, marijuana is a Schedule 1 controlled substance under federal regulations, which prohibits its use as a medicine and prevents the kind of large, controlled drug studies that could prove that it’s effective and that the benefits outweigh the risks, which can include addiction and psychosis.

Unless marijuana is moved to a Schedule II designation — where it would join opiates and stimulants that also have addictive qualities — such studies won’t happen, and states will have to decide on their own whether to defy the existing federal prohibition.

The Minnesota bill would allow patients with doctors’ permission to obtain cards they could use to purchase marijuana from vendors designated in each county, or allow them to grow plants in small quantities.

The list of conditions appears more restrictive than in California, where patients can get marijuana for anxiety and post-traumatic stress disorder — and critics suggest trickery by recreational users.

Faking it?

“Those are conditions that people can … fake if they want to get a card that allows them to use medical marijuana,” said Dr. Carrie Borchardt, a child psychiatrist and president of the Minnesota Psychiatric Society. “It’s really kind of a joke.”

A similar medical marijuana bill passed the Legislature in 2009 but was vetoed by then-Minnesota Gov. Tim Pawlenty. Law enforcement objections could prompt Gov. Mark Dayton to do the same.

One compromise would be the approval only of a marijuana-derived oil that lacks THC and has shown anecdotal evidence of treating pediatric seizures. Whether that option is pursued could become clearer at Tuesday’s hearing before the House Health and Human Services Policy Committee.

Mirman, who will present the “pro” argument in the doctors’ forum, said it’s illogical to keep marijuana from medical use when the law permits opiates and stimulants even though they are addictive and have similarities to heroin and ecstasy, respectively. By comparison, marijuana can be addictive but doesn’t present the same risk of fatal overdose.

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