Percutaneous absorption type preparation and process for prepari

Details Percutaneous absorption type preparation and process for prepari Percutaneous absorption type preparation and process for prepari

1991-08-02

1992-10-13

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...

424447, 424449, A61F 1300, A61F 1302, A61L 1500

Patent

active

051549298

ABSTRACT:
A percutaneous absorption type preparation and a process for preparing the same are disclosed. The preparation comprises a substantially drug-impermeable backing having provided thereon an adhesive layer comprising a pressure-sensitive adhesive containing therein a percutaneous absorption type drug (solid at room temperature) in an amount greater than the saturated solubility in the adhesive, wherein the excess amount of the drug greater than the saturated solubility is present in the adhesive in a continuous recrystallized state and a substantially network state.

REFERENCES:
patent: 4719226 (1988-01-01), Otsuka et al.
patent: 4784856 (1988-11-01), Fukuda et al
Patent Abstracts of Japan, vol. 12, No. 242 (C-510)[3089].
European Search Report EP 89 10 6337.

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