Arecoline hydrobromide is an organic molecular entity. It has a role as a toxin and a carcinogenic agent. Arecoline hydrobromide is formerly used as a cholinergic agent, it is a hypotensive agent. Arecoline hydrobromide is purgative, vermifuge and taenifuge agents in veterinary medicine. It induces rat hepatic CYP2 B by promoting nuclear translocation of CAR, the regulation of it on rat hepatic CYP2 B largely involve transcriptional activation of the gene,partially involve the post-translational modification of CYP2 B protein. Arecoline hydrobromide， A natural alkaloid that can penetrate the blood-brain barrier and has oral activity, and is a partial agonist of nicotine and muscarinic acetylcholine receptors. Arecoline hydrobromide has stimulating, alert, anti anxiety, and anti parasitic effects. Arecoline hydrobromide can also induce oxidative stress.