Disclosed is a packaged solid sufentanil drug dosage form comprising: (a) a solid sufentanil drug dosage form having a mass of from about 2mg to about 25mg or a volume of from about 2mcl to about 25mcl, said tablet comprising (b) a primary package containing said solid sufentanil drug dosage form and an oxygen scavenger, wherein the percentage of sufentanil oxidative degradation products is minimized or eliminated in a solid sufentanil drug dosage form packaged with said oxygen scavenger relative to a solid sufentanil drug dosage form packaged in the absence of an oxygen scavenger. Also disclosed is a method for preventing oxidative degradation of a solid sufentanil drug dosage form.