Factors influencing pharmacists' roles in preventing prescription and over-the-counter opioid misuse: a systematic review and narrative synthesis.

Improving pharmacists' capabilities and opportunities might improve pharmacists' motivation to offer opioid misuse services. This could improve pharmacists' behaviour, that is, their role in preventing prescription and OTC opioid misuse. The findings of this review were based on information obtained from primary evidence from qualitative studies; However. further empirical work is needed to identify how pharmacists can be supported.