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. 7 Hydroxymitragynine Wikipedia 7 O'Heaven 7 OH Kratom Vape Pen Blueberry Fast & Potent Emerging Drug Alert: 7 OH (7 Hydroxymitragynine) A new substance called 7 OH aka Kratom is being promoted for focus, pain relief, and anxiety, but they come with serious health risks. Reported risks include: What to Know About 7 OH and Other "Gas Station Highs" LegitScript Months after FDA calls it an addictive opioid, 7 OH still sold over the counter