Findings: Carers were usually parents (80%); 89% were currently caring for a heroin user of whom 49% had already had an overdose (93% involving opiates). One third had witnessed heroin being used, and 31 had witnessed an overdose. For eight carers, there had already been a death from drug overdose. There was poor knowledge of how to manage an overdose. Only a quarter had received advice on overdose management (26%) and only one third knew of the opiate antagonist naloxone (33%). The majority (88%) wanted training in overdose management, especially in emergency naloxone administration (88%). Interest in training did not differ according to carer type nor previous overdose experience.

The mortality and morbidity from heroin overdose have increased in the United States and internationally in the last decade. The lipid solubility allows the rapid deposition of heroin and its metabolites into the central nervous system and accounts for the “rush” experienced by users and for the toxicity. Risk factors for fatal and nonfatal heroin overdoses such as recent abstinence, decreased opiate tolerance, and polydrug use have been identified. Opiate substitution treatment such as methadone or buprenorphine is the only proven method of heroin overdose prevention. Death from a heroin overdose most commonly occurs 1 to 3 hours after injection at home in the company of other people. Numerous communities have taken advantage of this opportunity for treatment by implementing overdose prevention education to active heroin users, as well as prescribing naloxone for home use. Naloxone is a specific opiate antagonist without agonist properties or potential for abuse. It is inexpensive and nonscheduled and readily reverses the respiratory depression and sedation caused by heroin, as well as causing transient withdrawal symptoms. Program implementation considerations, legal ramifications, and research needs for prescription naloxone are discussed.

Substantial proportions of both community and treatment samples of drug misusers have witnessed an overdose death which could have been prevented through prior training in resuscitation techniques and administration of home-based supplies of naloxone. Such a new approach would be supported by most drug misusers. On the basis of these findings, we conclude that it is appropriate to proceed to a carefully constructed trial of naloxone distribution.