twenty healthy subjects ( 7 men and 13 women ) with average baseline p. acnes counts equal to or greater than 1.0 x 10 ( 5 ) were treated twice a day for eleven days in a randomized , double-blind study with either erythromycin 1.5 percent topical solution or clindamycin phosphate 1.0 percent topical solution .
C0001144
acnes
C0975705
clindamycin phosphate 1