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 Disposable Vape Pack 7 Disposable Cartridges Velaro 8 OH 2ml (600 puffs) 7 OH Withdrawal 7oh Kratom Smoke Tokz Vape Tokz 510 Battery Vaporizer Doctors are warning about a substance they call gas station heroin that is available over the counter at vape stores across Arizona. The product is called 7 OH, a component derived from kratom. WARNING: Georgians should be aware of a synthetic opioid known as 7 OH that's flooding gas stations and smoke shops across the state. These harmful and addictive drugs are sold like candy, and