A method produces a flanged cap and a flanged cap for a vessel accommodates a pharmaceutical substance, particularly a vial, wherein the flanged cap is formed from one material strip (M) having a film layer that has already been plastic-coated, wherein the material strip is thereafter stamped out and shaped via deep-drawing. A plastic component is affixed on the plastic coating of the flanged cap that forms a plastic layer. A flanged cap for a vessel for accommodating a pharmaceutical substance, particularly a vial, is formed from a metal film layer, wherein the film layer is likewise covered on the outside with a plastic layer that forms a coating on the film layer. A vessel contains a pharmaceutical substance.
