A dual-purpose seal is provided that forms part of a container for storing and dispensing consumer products. The container can be used in place of conventional blister packs for the packaging of pills, tablets, or capsules or in place of conventional multi-cavity containers for organizing and storing mixed medication for subsequent dispensing according to a predefined dosage regimen. The container includes a tray having a generally planar top surface into which has been formed one or more discrete cavities. The seal includes a cover film having pre-formed lines of separation defining a removable portion, and a barrier film that is secured to the cover film by a layer of peelable adhesive. The barrier film has pre-formed lines of separation defining a barrier patch. The barrier film also includes a heat-sealing adhesive such that the dual-purpose seal can be adhered to the tray in two different ways.