Controlled release article

Drug – bio-affecting and body treating compositions – Identification or warning feature – Taste or smell or chemical irritation to the eye – nose – or...

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128260, 424 14, 424 16, 424 21, 424 28, A61K 902, A61L 1503

Patent

active

040679616

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. The articles are especially adapted for use in or on the bodies of animals, including humans, to provide controlled release of surfactants having biological activity, for example, non-hormonal contraceptives.

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