Sitagliptin preparation and method of storage thereof

Abstract

An embodiment of the present invention provides a sitagliptin preparation in which the production of nitrosamines is suppressed. Alternatively, an embodiment of the present invention provides a method of storage of a sitagliptin preparation to suppress the production of nitrosamines. According to an embodiment of the present invention, a sitagliptin preparation is provided comprising a sitagliptin containing tablet, and a case or a packing sealing the sitagliptin containing tablet, wherein an equilibrium relative humidity of the sitagliptin containing tablet as converted at 24° C. is 0.3% or less when the sitagliptin preparation is stored for one month under a condition of 25° C. and a relative humidity of 60%.

Dependencies are inferred from the claim text.