Surgery – Female reproductory tract shields – supports – or birth... – With contraceptive – spermacidal – or antifertility agent
Patent
1996-02-27
1998-07-14
Brown, Michael A.
Surgery
Female reproductory tract shields, supports, or birth...
With contraceptive, spermacidal, or antifertility agent
424430, 128830, A61F 606
Patent
active
057788863
ABSTRACT:
The invention provides vaginal compositions suitable for preventing conception and transmission of sexually transmitted diseases comprising a spermicidal agent and a peroxygen compound. Preferably, the spermicidal agent is nonoxynol-9. Also preferably, the peroxygen compound is hydrogen peroxide. The spermicidal agent is preferred at about 3% by weight. The peroxygen compound is also preferred at about 3% by weight. In other aspects, the invention provides these compositions at a pH of about 4, preferably about 3 or lower. This pH is favorably maintained with lactic acid. These compositions are preferably encapsulated in the form of a gel.
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