Conclusions.Australian prescribers perceive most patients adhere with OST, although they may underestimate the levels of diversion. Prescribers’ beliefs about patients’ behaviours are important and influence decisions to prescribe, medication choice and suitability for unsupervised dosing. The uncertainties in assessing and responding to diversion/injection may be a factor deterring prescribers’ participation in OST.[Larance B, Degenhardt L, O’Brien S, Lintzeris N, Winstock A, Mattick RP, Bell J, Ali R. Prescribers’ perceptions of the diversion and injection of medication by opioid substitution treatment patients. Drug Alcohol Rev 2011] (Source: Drug and Alcohol Review)