<prompt> Naltrexone is used for which of the following poisoning -HeroinAtropineCannabisDiazepam  <response>: Ans. is a i.e., Heroin o Naltrexone is used in opioid poisoning and amongst the given options only heroin is an opioid. o Naltrexone is used orally for maintenance therapy in opioid poisoning, once it has been treated with naloxone. So, Naloxone : DOC for acute opioid morphine poisoning Naltrexone : Used for maintenance 