Storage stable topical pharmaceutical compositions containing zinc erythromycin and t-butanol
申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0109103A2
公开(公告)日:1984-05-23
A storage stable topical pharmaceutical composition containing zinc erythromycin, particularly useful in the topical treatment of acne vulgaris, is disclosed. This composition contains a solvent having a dielectric constant, measured at 25°C, of from about 5.5 to about 15, preferably from about 8 to about 12. such as t-butanol, to impart storage stability to the zinc erythromycin component. The composition may additonally contain particularly selected pharmaceutically-acceptable ni- trogencontaining stabilizer components, such as diisopropanolamine.
Clear, stable topical compositions of clarithromycin and processes for their preparation
申请人:Jaiswal Ashish
公开号:US20050079228A1
公开(公告)日:2005-04-14
The invention relates to clear, stable topical compositions of clarithromycin for the treatment of acne and processes for their preparation. The transparent topical compositions include clarithromycin, a zinc salt, a pharmaceutically acceptable vehicle and may include gelling agents.