Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Patent
1989-10-10
1993-04-06
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Web, sheet or filament bases; compositions of bandages; or...
424448, 424449, 424447, A61F 1302
Patent
active
052001903
ABSTRACT:
A percutaneous pharmaceutical preparation in tape form is provided. The preparation comprises a flexible backing, which is not permeable to an active ingredient, and an adhesive layer formed on the flexible backing, the adhesive layer comprising an adhesive base material and an active ingredient compatible with the adhesive base material, wherein the adhesive base material consists essentially of a copolymer containing 2-ethylhexyl acrylate in a concentration of 45 to 80 mol % and N-vinyl-2-pyrrolidone in a concentration of 20 to 55 mol %, and the active ingredient is estradiol and/or the esters thereof which are contained in a concentration of 6 to 25% by weight of the total amount of the adhesive base material and the active ingredient.
REFERENCES:
patent: 4751087 (1988-06-01), Wick
patent: 4818540 (1989-04-01), Chien et al.
Azuma Masato
Fukuda Mutsumi
Kuroda Hiroshi
Tsukahara Hiroko
Horne Leon R.
Page Thurman K.
Sekisui Kagaku Kogyo Kabushiki Kaisha
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