Topical dapsone for the treatment of acne
OwnerDavid W. Osborneinventor
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Abstract
The present invention relates to a method of treating acne by topically applying a dermatological composition comprising dapsone. In addition to inflammatory lesions, the composition also treats non-inflammatory acne. The composition is formulated to include dapsone in a both a dissolved and microparticulate state.
Claims26
A method for treating acne comprising topically applying a dermatological composition to said acne, wherein said dermatological composition comprises dapsone.
A method for preparing a dermatological composition comprising the steps of:
- dissolving methylparaben and propylparaben in a solvent to form a solution;
- dissolving dapsone in the solution to form a pharmaceutical component;
- contacting water and polymer to form a homogenous dispersion;
- contacting the pharmaceutical component and the homogenous dispersion to form a pharmaceutical dispersion;
- and
- contacting the pharmaceutical dispersion and a caustic material to form a dermatological composition, wherein the solvent is ethoxydiglycol or 1-methyl-2-pyrrolidone and the dermatological composition comprises dissolved dapsone and microparticulate dapsone.
A method for preventing a non-inflammatory acne lesion from becoming an inflammatory acne lesion comprising topically applying a dermatological composition, wherein said dermatological composition comprises dapsone.
A method for treating non-inflammatory acne comprising topically applying a dermatological composition, wherein said dermatological composition comprises dapsone.
A method for treating non-inflammatory acne and inflammatory acne comprising topically applying a dermatological composition, wherein said dermatological composition comprises dapsone.
Dependencies are inferred from the claim text.