# Schedules of Controlled Substances: Temporary Placement of Mitragynine Pseudoindoxyl, MGM-15, and MGM-16 in Schedule I

**Action Urgency Score:** 30/100

| Field | Value |
|---|---|
| Agency | Justice Department; Drug Enforcement Administration |
| Type | Final rule |
| Action | Temporary amendment; temporary scheduling order. |
| Published | 2026-08-26 |
| Effective | 2026-08-26 |
| Significant | No |
| CFR parts | 21 CFR 1308 |
| Summary | The Drug Enforcement Administration (DEA) is issuing this temporary order to schedule three 7-hydroxymitragynine-related substances (mitragynine pseudoindoxyl, MGM-15, and MGM-16), including their isomers, esters, ethers, salts, and salts of isomers, esters, and ethers, whenever the existence of such isomers, esters, ethers, and salts is possible, in schedule I of the Controlled Substances Act. DEA bases this action on a finding that placing mitragynine pseudoindoxyl, MGM-15, and MGM-16 in schedule I is necessary to avoid an imminent hazard to public safety. This order imposes the regulatory c |
| Document number | 2026-17429 |

## Why this score
- Final rule.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/08/26/2026-17429/schedules-of-controlled-substances-temporary-placement-of-mitragynine-pseudoindoxyl-mgm-15-and). Last refreshed: 2026-11-04T09:17:43.641Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.