South Dakota (SD) — What’s Legal
Checked Oct 13, 2025 • Parent-friendly summary (not legal advice).
- Tianeptine: No statewide schedule; local bans advancing (e.g., Rapid City ordinance).
- Phenibut: Not scheduled; FDA: not a lawful dietary ingredient.
- Kratom: 21+ & product limits (2025 law tightened 7-OH concentrations, labeling, adulterants).
- Nitrous oxide / inhalants: General inhalant law; local retail restrictions possible.
- THC / Cannabis: Medical program active; adult-use rejected by voters (Nov 2024).
- Salvia / Amanita: Not scheduled statewide.
- “Mad honey”: No SD-specific ban; food hazard framing.
Parent tip: Ask for age checks and for candy-look-alike packaging to be kept behind the counter.