Patent ID: 11896718
Assignee: nan
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 2:
3. The tablet-in-tablet combined preparation of claim 1, wherein, as the release-modifying agent, a mixture of hydroxypropyl methylcellulose having a viscosity of 75,000 to 140,000 mPa·s and hydroxypropyl methylcellulose having a viscosity of 3,000 to 5,600 mPa·s is used, and, with respect to a total weight of the release-modifying agent, 60 to 70 wt % of the hydroxypropyl methylcellulose having a viscosity of 75,000 to 140,000 mPa·s and 30 to 40 wt % of the hydroxypropyl methylcellulose having a viscosity of 3,000 to 5,600 mPa·s are included.