Parents: Have You Heard of 7 OH? A new substance called 7 OH (7 Hydroxymitragynine) is starting to appear in gas stations, vape shops, and online stores, and many people don't realize the risks. 7 oh vape buy online The Food and Drug Administration has now turned its attention to synthesized opioids, known as 7OH, with federal officials calling for the substance to be classified as an illicit drug. Dr. Marty I was just reading a post about 7oh (never heard of it) and this person said that they were offered a free sample at a vape shop and have been highly addicted