Controlled release contraceptive article

Details Controlled release contraceptive article Controlled release contraceptive article

1975-12-08

1977-06-21

Torrence, Dolph H.

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Polymer from ethylenic monomers only

128130, 128260, 424 14, 424 16, A61M 3100

Patent

active

040312020

ABSTRACT:
Controlled release articles which regulate the concentration of a surfactant compound at a useful level in an environment external to said articles are provided with a coating. The improved articles are especially useful in or on the bodies of animals, including humans, to provide immediate release of the coating and, thereafter, to provide controlled release of surfactants having biological activity, e.g., non-hormonal contraceptives.

REFERENCES:
patent: 2777796 (1957-01-01), Elias
patent: 3108043 (1963-10-01), Millman et al.
patent: 3760805 (1973-09-01), Higuchi
patent: 3760984 (1973-09-01), Theeuwes
patent: 3845770 (1974-11-01), Theeuwes et al.
patent: 3948254 (1976-04-01), Zaffaroni

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