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Kids poisoned by medical marijuana

Legalizing marijuana may have unintended consequences. Since medical marijuana was legalized in Colorado, more than a dozen young children have been unintentionally poisoned with the drug, researchers report.

About half the cases resulted from kids eating marijuana-laced cookies, brownies, sodas or candy. In many cases, the marijuana came from their grandparents' stash, the investigators said.

"We are seeing increases in exposure to marijuana in young pediatric patients, and they have more severe symptoms than we typically associate with marijuana," said lead researcher Dr. George Sam Wang, a medical toxicology fellow at the Rocky Mountain Poison and Drug Center in Denver.

But doctors are not familiar with marijuana poisoning in children, so unless the parents are forthcoming it can take time and tests to diagnose the problem, Wang said. Symptoms of marijuana poisoning in children include sleepiness and balance problems while walking.

"We had not seen these exposures before the big boom of the medical marijuana industry," Wang said.

The active chemical in marijuana, tetrahydrocannabinol, is in higher than normal concentrations in medical marijuana, and often is sold in baked goods, soft drinks and candies. "We are seeing more symptoms because some of these products have very high amounts of marijuana in them," Wang said. "You get such a high dose on such a small child, the symptoms are more severe."

This report stems from one Denver hospital, and Wang said he does not know how extensive the problem is elsewhere. Colorado adults are allowed to possess up to one ounce of marijuana or six marijuana plants. Denver alone issued more than 300 sales tax licenses for marijuana dispensaries in 2010.

For the study, Wang's team compared the number of children treated in the emergency room for marijuana poisoning before and after the law was enacted in October 2009. After decriminalization, 14 children - mostly boys and some as young as 8 months - were found to have ingested marijuana. Eight had consumed medical marijuana, and seven ate marijuana in foods. Two were admitted to the intensive care unit.

Before Sept. 30, 2009, no possible poisonings were attributed to marijuana, the researchers found.

There may be more unreported cases, the study authors said. "Because of a perceived stigma associated with medical marijuana, families may be reluctant to report its use to health care providers," they wrote in the study.

To prevent harm to children, Wang advises treating marijuana like any other drug and keeping it out of their reach, particularly if it is in a tempting form like cookies. Some poison-control experts also are pushing for marijuana to come in tamper-proof packages as a way of keeping children away from it.

Eighteen states and Washington, D.C. have legalized medical marijuana. Colorado and Washington also have legalized the recreational use of marijuana.

The ongoing debate about legalizing marijuana should include discussion of the potential consequences to children, said the researchers and other medical experts. "There is a lot of information that may not be entirely accurate about how benign marijuana is," said Dr. Sharon Levy, an assistant professor of pediatrics at Harvard Medical School.

Written by: HealthDay News
Posted: Sep 10, 2013 by Lisa Callaham

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