Washington (WA) — What’s Legal

Checked Oct 13 2025 • Parent-friendly summary (not legal advice).

Tianeptine: Not specifically scheduled (as of 2025).
Phenibut: Not scheduled; FDA dietary-ingredient exclusion applies.
Kratom: No statewide ban; legal with consumer-protection oversight (watch local actions and “7-OH” products).
Nitrous oxide: Inhalant misuse prohibited (RCW 9.47A.020); medical/dental nitrous regulated (WAC 246-817-740).
THC / Cannabis: Adult-use legal under RCW 69.50; Liquor & Cannabis Board regulates retail (21+).
Salvia / Amanita: No Schedule I listing found; not scheduled statewide.
“Mad honey”: No WA-specific ban; treat as food hazard.

Parent tip: Products sold as “legal highs” or “herbal relaxers” may still carry warnings from FDA or poison centers.