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Health & Medical

Bleeding disorders associated with contaminated synthetic cannabinoids reported

As of April 5, a total of 94 cases of severe coagulopathy and bleeding associated with synthetic cannabinoid use have been reported in five states (89 cases in Illinois, two cases in Indiana, one case in Missouri, one case in Wisconsin and one case in Maryland). Two deaths have been reported in Illinois. The first case occurred in Illinois on March 7.

These cases have used products containing synthetic cannabinoids (aka Spice, K2, legal weed, fake marijuana, synthetic marijuana and synthetic THC) which were obtained from convenience stores, dealers and friends. Synthetic cannabinoids can be smoked or sold as liquids to be vaporized and inhaled in e-cigarettes and other devices. The chemical brodifacoum, identified in biological samples from some patients, is widely used in pesticides (typically in rodent control) as a vitamin K antagonist anticoagulant poison. It is suspected that the brodifacoum was added to synthetic cannabinoid mixtures.

Symptoms of severe coagulopathy include: easy bruising, bleeding from the nose or gums, coughing up blood, vomiting blood, blood in the urine or stool, severe menstrual bleeding and bleeding out of proportion to an injury. Laboratory tests have found the patients’ INRs to range from 6 to >20. A normal INR for a person not taking warfarin is around 1.

Brodifacoum is a long-acting anticoagulant that works by blocking the action of vitamin K. The cases have responded to the treatment for vitamin K antagonists, including multiple units of fresh frozen plasma, activated prothrombin complex concentrate, and large doses of vitamin K. Patients often require prolonged treatment with high dose oral vitamin K even after the initial bleeding has been controlled.

No cases have been reported in Iowa.

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