PSA: Don't fall for the "natural" hype. We need to talk about 7 OH (7 hydroxymitragynine), a potent psychoactive compound being sold in gummies, candies and liquid shots that's marketed as a chill FDA Pushes to Classify 7 OH Sold in Vape Shops as Illicit Drug Ecigator 7 OH: Dangerous Kratom Extract Alarm Health Officials WellBrook Michigan Poison & Drug Information Center You CAN walk into a gas station or smoke shop in Michigan and buy a drug called Seven Hydroxy (7 OH), or 7 Hydroxymitragynine (7 OH MTG) Instagram The supply of high potency opioids is expanding through products sold legally as herbal supplements in gas stations, vape shops, and convenience stores. The most prominent is 7 hydroxymitragynine, also known as 7 OH.