MGM-16

Common card · No. 413395

MGM-16 is an opioid drug which is a synthetic derivative of mitragynine, a natural product derived from the Southeast Asian tree kratom. It is the 9-fluoro derivative of another semi-synthetic mitragynine derivative MGM-15, and is a comparatively potent opioid analgesic with approximately 240 times the potency of morphine. While several semi-synthetic derivatives of mitragynine such as 7-hydroxymitragynine and MGM-15 were widely sold in the United States as unscheduled designer drug alternatives to illicit opioids from around 2023–2026, it is unclear whether MGM-16 has appeared on the market to any significant extent. Nevertheless, on 2 July 2026, the DEA published a notice of intent to schedule three 7-hydroxymitragynine-related substances (mitragynine pseudoindoxyl, MGM-15, and MGM-16) under Schedule I of the Controlled Substances Act. As of August 5th, 2026 MGM-16 has been placed in Schedule I through an emergency temporary scheduling order, making unauthorized possession, manufacture...

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