Buccal drug delivery system is a therapeutic option which delivers drugs through buccal mucosal lines (space between inner cheek and upper gingivae). Through buccal drug delivery system, the desired therapeutic dose of the drug gets immediately absorbed into plasma and the consistency of the concentration can be maintained throughout the duration of the treatment. Buccal dosage form may be of a) matrix type or b) reservoir type. In matrix type, the buccal path is configured in a matrix, comprising drugs, adhesives, and additives, all combined together. In reservoir type, the buccal path is fabricated in a reservoir system, consisting of a cavity for drug and adhesives separated from the drug. An impermeable surface is applied to the drug in order to direct drug delivery, reduce risk of patch deformation, and drug loss.