Chemical substances have an important threat due to extensive use in medicine, agriculture, industry and environment. In this retrospective study, etiological and demographic characteristics of acute poisoning cases admitted to a hospital in Iran were investigated. We compared these data with those reported from other parts of the country and the international experiences to evaluate any difference if exists. 7 052 poisoned cases admitted to the hospital from April 2006 to March 2013, by data collected from the medical record in poison center section. According to our results there is a predominance of male patients and the majority of the poisoned patients were between 20-30 years old. Drug poisoning was the most common cause of poisonings. The most frequently involved drugs were benzodiazepines and antidepressants. The seasonal distribution of our study showed a peak in summer. To prevent acute poisonings, the social education about the risk assessment of central nervous system-acting drugs and reduction of the exposure period of people to pesticides are recommended. This study suggested a proper educational program for the public and primary care units. Our results provide useful information for preventive strategies.
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