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Edible Cannabis Products Often Mislabeled

Sixty percent contained less active ingredient than label said, while 23 percent had more

WEDNESDAY, June 24, 2015 (HealthDay News) -- Most edible cannabis products sampled in three major U.S. cities are mislabeled, often containing more or less active ingredient than indicated on the packaging, according to a report published in the June 23/30 issue of the Journal of the American Medical Association.

For the study, researchers collected 75 different edible cannabis products -- baked goods, beverages, and candy or chocolates -- representing 47 different brands. The products were legally purchased from a sample of three medical dispensaries in each of three cities.

Only 17 percent of 75 cannabis edibles purchased in San Francisco, Los Angeles, and Seattle carried packaging that accurately reported the amount of tetrahydrocannabinol (THC), the researchers found. Sixty percent were overlabeled with respect to THC content. The researchers also found that a substantial number of the edibles did not contain detectable levels of cannabidiol (CBD). Only 13 of the 75 products labeled their CBD content at all, and all were mislabeled, according to the report.

The researchers also noted that nearly a quarter (23 percent) of edible cannabis products contained more THC than expected. "It can be a miserable experience, and through the edible route of administration, that miserable experience can last many hours," study author Ryan Vandrey, Ph.D., an associate professor of psychiatry and behavioral sciences at the Johns Hopkins University School of Medicine in Baltimore, told HealthDay.

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