Today narcotics and other drugs have become the major cause of poisoning in big cities of Iran. Typical study of 50 drug-related deaths caused by use of narcotics, phenobarbital, tricyclic antiderpressants, meprobamate, aspirin, diazepam, chloropromazine, phenytoin, carbamazepine and propranolole, alone or with other drugs and toxic substances is described. This study covered the following topi...