Percutaneous pharmaceutical preparation

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...

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Details

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.

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