Patent ID: 8703182

Claim:
A method for manufacturing a soft capsule formulation containing a non-water-soluble light-shielding agent in its shell, comprising: (i) the step of preparing a shell-forming solution, comprising the following steps (a) to (c): (a) dissolving a gelling agent in medium A; (b) dispersing the non-water-soluble light-shielding agent in medium B free from the gelling agent; and (c) mixing Medium A containing the gelling agent dissolved therein with Medium B containing the non-water-soluble light-shielding agent dispersed therein; and (ii) the step of forming a capsule shell for the soft capsule formulation using the shell-forming solution prepared in the step (i), wherein the step of dispersing the non-water-soluble light-shielding agent in Medium B free from the gelling agent is accomplished by ultrasonication.