Patent ID: 7642286

Claim:
A pharmaceutical tablet consisting essentially of a compressed mixture of: (a) 2-50 weight percent pravastatin sodium; (b) 30-95 weight percent of a filler; (c) 0-20 weight percent of a binder; (d) 1-10 weight percent of tromethamine; (e) 0.5-10 weight percent of a disintegrant; and (f) 0-6 weight percent of a lubricant wherein said tromethamine is present in an amount that allows the tablet to retain 90 to 110 percent of an original pravastatin assay value after storage for 3 months at about 40° C. and 75% relative humidity and said tromethamine is present in an amount such that the pH of the tablet is less than 9 as determined by dissolving the composition in 900 ml of deionized water.