| Substance | New Hampshire | Federal |
|---|---|---|
| 7-OH (7-hydroxymitragynine) | not checked yet | pending: Temporary Placement of 7-Hydroxymitragynine Above a Specified Threshold in Schedule I |
| MGM-15 | not checked yet | Controlled substance (in effect since 2026-08-26) |
| Mitragynine pseudoindoxyl | not checked yet | Controlled substance (in effect since 2026-08-26) |
| Kratom (leaf and extracts) | not checked yet | Restricted |
| Nitrous oxide (whippets, tanks) | restricted from 2027-01-01 | Regulated; pending: H.R. 7945, Nitrous Oxide Safety Act of 2026 |
| Hemp THC and THCA | not checked yet | Regulated; pending: Public Law 119-103, division B, § 2019; restricted from 2026-12-11 |
| Tianeptine | not checked yet | pending: Schedules of Controlled Substances: Placement of Tianeptine in Schedule I |
| Phenibut | not checked yet | not checked yet |
| Poppers (alkyl nitrites) | not checked yet | Banned (in effect since 1991-02-27) |
| SR-17018 (5,6-dichloro desmethylchlorphine) | not checked yet | Controlled substance (in effect since 2026-08-27) |
A licensee shall not sell, distribute, furnish, or offer for sale any nitrous oxide device, canister
This act shall take effect January 1, 2027.
HB 1630-FN, Chapter 177 (2026), final version New Hampshire General Court
Our note: Applies to liquor licensees. The bill as introduced also covered poppers; the enacted chapter does not.