Prostaglandin compositions and methods of treatment for male...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Radical -xh acid – or anhydride – acid halide or salt thereof...

Reexamination Certificate

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C514S782000, C514S785000, C514S946000, C514S947000, C514S054000

Reexamination Certificate

active

07105571

ABSTRACT:
The invention provides methods and compositions for treating erectile dysfunction. The methods include the step of placing within the fossa navicularis of the patient an effective erection-inducing amount of a vasoactive prostaglandin composition of a semi-solid consistency. The composition comprises a vasoactive prostaglandin, a penetration enhancer, a shear-thinning polysaccharide, a lipophilic compound, and an acidic buffer system. The penetration enhancer is an alkyl-2-(N-substituted amino)-alkanoate ester, a (N-substituted amino)-alkanol alkanoate, or a mixture of these enhancers. The lipophilic compound may be an aliphatic C1to C8alcohol, aliphatic C2to C30ester, an aliphatic C8to C30ester, or a mixture of these. The composition includes a buffer system providing a buffered pH value for said composition in the range of about 3 to about 7.4.

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