Patent ID: 8377995

Claim:
An orally disintegrating tablet comprising (a) crystalline cellulose, (b) a calcium hydrogen phosphate compound, (c) a natural starch and (d) a lubricant, wherein the blending ratio is (a) 9 to 60 wt %, (b) 30 to 60 wt %, (c) 3 to 40 wt % and (d) 0.01 to 1.8 wt %, relative to 100 wt % of the disintegrating tablet, wherein the disintegrating tablet has an absolute hardness of not less than 1.0 N/mm 2 and an oral disintegration time of within 30 seconds when the disintegrating tablet is stored for 3 days at 40° C. and a relative humidity of 75%.