The invention relates to a sealable, molded body and the production thereof, as well as a composite film for the formation of the molded body, and the use of the molded body for the packaging of oral biologics, in particular orally applicable vaccines.The composite film comprises two outer layers, one of the outer layers is formed as a sealing layer, or a barrier layer or a carrier layer, and the other outer layer has a rough or uneven or microstructured surface or comprises at least a nonwoven material, an adhesive material, a sticky material or a combination thereof. It is preferred that the composite film is biologically degradable.A molded body, which takes up the biologic or the vaccine, is formed from the composite film by thermoforming, and is then sealed.