A method of applying additional information to a pharmaceutical product (4) sealed in a cavity (3) of a blister (2), in which the blister (2) is a mono-blister that has precisely a single cavity (3) containing a single dose of the pharmaceutical product (4), the mono-blister (2) having an outer edge (5), a first surface (33) and a second surface (30), the first surface (33) being designed to exert force on the Pharmaceutical product (4) for expelling the pharmaceutical product (4) through the second surface (30), and in which the method comprises the step of: providing an individual information card (12) having precisely a receiving opening blister (13) and a labeling area (15), in which the edge around the blister reception opening (13) is provided with an adhesive (31)； align the blister cavity (3) with the blister reception opening (13) of the information card (12), so that there is some overlap between the edge around the blister reception opening (13) and the area of the monoblast between its outer edge (5) and the cavity (3)； fix the information card (12) to the mono-blister (2) thus aligned； and in which the mono-blister is obtained: providing a multidose blister (1) with multiple cavities (3) containing individually packaged respective doses of the pharmaceutical product； dividing the multidose blister (1) into a plurality of blister subsections (2), each blister subsection (2) being a single blister having precisely a single cavity (3) containing a single dose of the pharmaceutical product (4) and in which the information card (12) is either exclusively fixed to the second surface (30) of the mono-blister (2), or in which the cavity (3) is placed in the opening (13) and the information card (12) is fixed exclusively to the first surface (33) of the mono-blister (2)； in which a surface of the mono-blister (2) contains printed information, and in which the labeling area (15) of the information card (12) carries information on that side where the information o
