Retinoid solutions and formulations made therefrom

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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Details

C514S725000, C514S859000, C514S970000, C514S912000, C424S078040

Reexamination Certificate

active

07662855

ABSTRACT:
Compositions for topical application for treating a skin disorder (e.g., acne) include a retinoid, which is solubilized completely in alcohol only with the aid of cosolvents such as esters (e.g., alkyl benzoate, isopropyl palmitate, isopropyl myristate, diisopropyl adipate and their derivatives). This completely solubilized retinoid can be used to formulate an emulsion system or liquid to powder suspension containing a second active, such as an antibiotic (e.g., clindamycin).

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