Intravaginal drug delivery device
First Claim
Patent Images
1. An intravaginal drug delivery device for prolonged release of an active ingredient consisting essentially of at least one polyorganosiloxane ring matrix containing an active ingredient to be released, and an amount of 1 to 50% by weight of at least one fatty acid ester.
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Abstract
An intravaginal drug delivery device for prolonged release of an active ingredient comprising a biocompatible polymer matrix containing an active ingredient to be released and an effective amount of at least one fatty acid ester and a method of inducing contraception in female warm-blooded animals, including humans.
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Citations
19 Claims
- 1. An intravaginal drug delivery device for prolonged release of an active ingredient consisting essentially of at least one polyorganosiloxane ring matrix containing an active ingredient to be released, and an amount of 1 to 50% by weight of at least one fatty acid ester.
- 8. An intravaginal drug delivery device for prolonged release of estrogen and/or progestogen in an amount of 1 to 50% by weight consisting essentially of at least one polyorganosiloxane ring matrix containing an active ingredient to be released, and an amount of 1 to 50% by weight of at least one fatty acid ester.
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18. An intravaginal drug delivery device for prolonged release of an active ingredient consisting essentially of at least one polyorganosiloxane ring matrix containing an active ingredient to be released, and an amount of 1 to 50% by weight of at least one fatty acid ester, wherein the polyorganosiloxane matrix is a central polymer matrix core surrounded by a rate controlling membrane comprising the same polymer as the polymer matrix.
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19. An intravaginal drug delivery device for prolonged release of an active ingredient consisting essentially of at least one polyorganosiloxane ring matrix containing an active ingredient to be released daily of up to 500 μ
- g per day sustained up to 12 months in a zero order pattern, and an amount of 1 to 50% by weight of at least one fatty acid ester.
Specification