Kentucky taking steps to keep 7 OH products off store shelves 7 Oh Mitragynine Vape Our team has removed 17,311 packages of isolated and or concentrated 7 Gas station heroin' still widely available at vape shops, despite bans Orange County Register Ban on synthetic kratom in effect in Ohio, but more action could be coming The Statehouse News Bureau 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.