ABOUT Regime Vape & Smoke 7OH, Vapes, and More in Rochester & Victor State health cabinet to ban sale and possession of 'dangerous' kratom derivative Kentucky Lantern California Takes On Potent Synthetic Drug 7 OH KQED 7oh kratom Smoke Tokz FDA urges crackdown on 7 OH, a potent opioid like substance sold in gas stations 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.