Unregulated opioid like drug sold in Lawrence smoke shops News kansan.com Kratom and 7 hydroxymitragynine or 7 OH are two types of substances that have been gaining attention recently. But what exactly are they? Kratom is considered an herbal supplement that can have effects similar 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 OH kratom is fueling addictions across the Philly region