Patents Assigned to Maruho Kabushiki Kaisha
  • Patent number: 6953590
    Abstract: A preparation for transdermal absorption is disclosed which is suited for alleviating lasting pains caused by herpes zoster or postherpetic neuralgia and is practical and more improved in drug efficacy, safety and application characteristics. This tape preparation for transdermal absorption is obtained by causing an adhesive mass prepared by incorporating 1–30 parts by weight of a local anesthetic as an active ingredient in 100 parts by weight of a nonaqueous adhesive mass base comprising 5–50% by weight of a styrene-isoprene-styrene block copolymer, 1–60% by weight of an alicyclic saturated hydrocarbon resin, 5–60% by weight of liquid paraffin and 1–30% by weight of butyl rubber to be supported on a backing.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: October 11, 2005
    Assignees: Yutoku Pharmaceutical Ind. Co., Ltd., Maruho Kabushiki Kaisha
    Inventors: Yukino Owaki, Michiyo Hashimoto, Isamu Sakamoto, Kunio Takiguchi, Yoetsu Toyoshima