Stable prostaglandin-containing compositions

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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C424S078040

Reexamination Certificate

active

08084501

ABSTRACT:
A pharmaceutical composition containing a prostaglandin and an alkanoic acid ester of a polyethoxylated sorbitol in an amount effective to enhance the chemical stability of the prostaglandin, and the use thereof for treating ophthalmic conditions. Also disclosed are methods for enhancing the chemical stability of a prostaglandin-containing composition by using an alkanoic acid ester of a polyethoxylated sorbitol.

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