Gel composition for treatment of common acne comprising a combination of benzoyl peroxide and adapalene and/or adapalene salt
US8936800B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2012 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Dec 3, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Dermatological/cosmetic compositions suited for preventing or treating cell differentiation and/or proliferation and/or keratinization disorders, including preventing or treating common acne, comprise, in a physiologically acceptable medium, (i) at least one dispersed retinoid, (ii) dispersed benzoyl peroxide, in free or encapsulated form, and (iii) at least one pH-independent gelling agent, selected from the group consisting of (a) polyacrylamide gelling agents, (b) gelling agents which are acrylic polymers coupled to hydrophobic chains, (c) modified starch gelling agents, and mixture thereof, said composition maintaining good chemical stability of (i) and (ii) without their degradation over time at a temperature of between 4° C. and 40° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.