Back to results
US 4,543,351 AGranted
Spironolactone containing composition for combatting acne
AssigneeSchiapparelli Farmaceutici S.p.A.
InventorMichele Messina
Life of this patent
Estimating the term…
Abstract
A spironolactone containing composition for topical use in the form of a cream active in combatting acne and causing only skin absorption and therefore devoid of any undesired systemic effect.
Claims3
A topical composition comprising:
- A. from 0.1 to 10 weight percent of spironolactone as the active ingredient;
- B. from 10 to 25 weight percent of a mixed polyethylene glycol and polyoxyethylene glycol ester of a higher saturated fatty acid;
- C. from 2 to 10 weight percent of a saturated polyoxyethylene glycol glyceride;
- and
- D. from 60 to 75 weight percent of water.
2 more elements
Dependencies are inferred from the claim text.