The known: Opioid medications can cause harm and dependence, and inappropriate prescribing for patients after surgery or trauma, without planning for de‐escalation, exposes them to the risk of chronic use. The new: Delivery of a brief education module by an analgesic stewardship pharmacist to junior clinicians and pharmacists was followed by significantly reduced opioid prescribing for surgical patients at discharge, including prescribing of slow release formulations associated with greater risk.