following single oral dosing of ampicillin , cephalexin , tetracycline , erythromycin estolate , clindamycin and rifampicin to six normal volunteers , antibacterial activity was measured at 1 , 3 and 6 h in serum , gingival fluid and minor gland saliva from all subjects and in parotid and submandiabular saliva from three .
C0035608
rifampicin
C0279516
antibacterial