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Drug reference

251-nbome

5HT2A receptor agonist · Hallucinogen

5HT2A receptor agonistHallucinogen
CDSCO approved
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
not curated

Mechanism

251-NBOMe is a synthetic, highly potent 5HT2A receptor agonist.

Side effects

Common
TachycardiaHypertensionAgitationAggressionHallucinationsSeizures
Serious
  • Overdose deaths
  • Injury-related deaths

Ask House about 251-nbome

Continue into a citation-backed clinical answer with the drug context already attached.

Sources: Goodman & Gilman 14e·Verified: 2026-05-10 · House clinical team