<prompt> Pupil dilatation is seen in poisoning withDhaturaEthyl alcoholBarium carbonateBarbiturates  <response>: Miosis: Opium, Morphine, Organophosphorus, Barbiturates Mydriasis: Alcohol, Datura, Carbon monoxide, Cocaine Ref: K.S.Narayan Reddys Synopsis of Forensic Medicine and Toxicology, 29th edition, section 2-Toxicology . 