Method of treating acne conditions
US5753637A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1997 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Jan 8, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K33/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The acne treatment method of the present invention includes applying to skin a composition including an effective amount of acne treatment medication selected from the group consisting of benzoyl peroxide and salicylic acid, an effective amount of a vasoconstrictor and an inert carrier. The acne treatment medication is therapeutic to acne conditions by acting as an antibacterial agent. The vasoconstrictor removes the redness normally associated with acne conditions as well as additional redness which may be caused by the benzoyl peroxide itself. The carrier is simply an inert flowing carrier to permit the application of the active ingredients to the skin. In preferred embodiments about 1 to 15% of the acne treatment medication based on the total weight of the composition is included. The preferred acne treatment medication is benzoyl peroxide and the preferred vasoconstrictor is tetrahydrozoline hydrochloride or a combination of tetrahydrozoline hydrochloride and zinc sulfate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.