Safety Statements: Poison by subcutaneous, intravenous, and intraperitoneal routes. Moderately toxic by ingestion. Human systemic effects by subcutaneous route: hallucinations or distorted perceptions; nausea or vomiting, and other gastrointestinal changes. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of NOx and SOx. See also PHYSOSTIGMINE.