7 OH: The New Opioid Crisis? Health Wanted 204 Kratom and 7 OH products are all the buzz in smoke shops and gas stations, marketed as safe alternatives for pain relief and opioid withdrawal. But the U.S. Food and Drug Administration is FDA Warns About 7 OH: What Vapers Need to Know Vaping Land Everyone should beware of the dangers of 7 OH. Thank you, Montana Attorney General Austin Knudsen, for sounding the alarm.