76-99-3

Poison by ingestion, intraperitoneal, intravenous, subcutaneous, and intraduodenal routes. Human systemic effects: coma, nausea or vomiting, respiratory changes, respiratory depression, somnolence. An experimental teratogen. Experimental reproductive effects. Caution: Abuse leads to habituation or addiction. When heated to decomposition it emits toxic fumes of NOx. See also METHADONE HYDROCHLORIDE.