Police Scotland Tayside Division is appealing for information after prescription morphine was lost in the Friockheim area.
In appealing for information to assist enquiries Tayside Division would also warn of the dangers of consuming medication that belongs to another person.
A spokesperson said: “Clearly any medication can be dangerous if taken by someone other than the person it is prescribed to and if taken in unprescribed quantities.”
Anyone who has any information that could lead to the recovery of these drugs should contact Tayside Division on 101. Alternatively information can be passed anonymously via the charity Crimestoppers on 0800 555 111.