Prescription medication disappeared out the door of a Cobram pharmacy after a "client" asked to check the information on the packaging.
The incident occurred on December 27 around 4.50pm.
Cobram police would like to discuss the circumstances with the male pictured.
The male is described as tall with a stocky build, wearing a green Sonics singlet, cargo shorts and sandals, with a dark complexion.
Information can be provided directly to Cobram Police on 0358 711977 or via Crime Stoppers www.crimestoppersvic.com.au