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    • 50. 发明专利
    • EASILY OXIDIZABLE HYDROPHOBIC SUBSTANCE-CONTAINING SOLUTION
    • JPH11302195A
    • 1999-11-02
    • JP12280498
    • 1998-04-16
    • LION CORP
    • HATTORI MANABUODAKA AKITOKOIDE MISAO
    • A61K47/06
    • PROBLEM TO BE SOLVED: To obtain the subject solution which is obtained by inexpensively and efficiently dissolving an easily oxidizable hydrophobic substance into a solution and is useful as an ophthalmic solution or the like by including and solubilizing the easily oxidizable hydrophobic substance in a specific size of micell with the use of a surfactant. SOLUTION: The objective solution is obtained by including and solubilizating (A) an easily oxidizable hydrophobic substance in (B) a micell with a size of 0.03-5 μm, preferably 0.05-0.5 μm, by adding (C) a surfactant and, when necessary, (D) a solution adjuvant, e.g. a salt, an alcohol, propylene glycol or the like, a stabilizer, a buffering agent, water or the like. As the component A, diphenhydramine, indometacin, a vitamin A (β-carotin or the like is included), a vitamin E (e.g. d-α-tocopherol acetate or the like) or the like is illustrated. As the component C, a nonionic surfactant, e.g. a polyoxyethylene-cured castor oil, a polyoxy-ethylene sorbitan fatty acid ester or the like, is preferably used.