#$%^&*AU2016203632A120160623.pdf#####ABSTRACT A water- and oxygen-occlusive blister pack enclosing an inert nitrogen atmosphere storing a medicinal tablet, the pack comprising: (a) a breachable-by-tablet foil, wherein the foil is about a 50 g/m2 foil consisting of about a 12 pm thick layer of polyethylene terephthalate, about a 25 pm thick layer of aluminum, and about a 6-8 g/m2 layer of polyvinyl chloride/polyvinyl alcohol, wherein the layer of polyvinyl chloride/polyvinyl alcohol is in proximity to (c)； (b) a water- and oxygen-occlusive wall in communication with the breachable-by-tablet foil, wherein the water- and oxygen-occlusive wall comprises a 10-40 pm thick layer of an aliphatic polyamide laminated to a 30-60 pm thick layer of aluminum or an alloy thereof, which is laminated to a 40-80 pm thick layer of polyvinyl chloride； and wherein the polyvinyl chloride layer is in proximity to (c)； and (c) a tablet in an inert nitrogen atmosphere between the foil (a) and the wall (b)； wherein the tablet contains buprenorphine or a salt or ester thereof and a mixture of anhydrous citric acid and sodium citrate； wherein the tablet does not contain either an antioxidant or a chelating agent due to the water- and oxygenocclusive wall that protects the tablets from significant chemical decomposition； and wherein the laminate protects the tablets from significant chemical decomposition.
