Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Reexamination Certificate
2005-05-31
2005-05-31
Azpuru, Carlos A. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
C424S434000, C424S431000, C424S432000, C424S433000, C424S401000, C424S404000
Reexamination Certificate
active
06899890
ABSTRACT:
The present invention relates to a novel essentially pH neutral vaginal drug delivery system suitable for modified delivery of a therapeutically active material in the vaginal cavity. The vaginal drug delivery system comprises an essentially pH neutral emulsion having globules having two phases, an internal water soluble phase and an external water-insoluble phase or film, wherein the water-soluble interior phase contains a therapeutically active drug or drugs. One novel aspect of the vaginal drug delivery system is that the internal water soluble phase comprises an acidic buffered phase.
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Hermelin Marc S.
Kirschner Mitchell I.
Levinson R. Saul
Riley Thomas C.
Azpuru Carlos A.
K-V Pharmaceutical Company
Nath Gary M.
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