HARD GELATIN CAPSULE CONTAINING TITANIUM OXIDE WITH A CONTROLLED PARTICLE SIZE AND PROCESS FOR PRODUCING THE SAME.

摘要

A hard gelatin capsule is provided which comprises gelatin and titanium oxide having a secondary particle size of less than 10 °m and a median diameter of 0.5 °m or less being dispersed in the gelatin. A process for producing a hard gelatin capsule includes the steps of preparing a gelatin solution, dispersing titanium oxide in the gelatin solution so that a secondary particle size of the titanium oxide becomes less than 10 °m and a median diameter of the same becomes 0.5 °m or less, and molding the dispersion to prepare a capsule.