Sample Zone of inhibition in millimeters (mm)
E.coli S. E. coli R S. aureus
TMP 18.5 29.6 22.5
PM 16.0 28.5 20.2
KN 17.0 29.0 19.5
FD 14.0 30.3 26.0
SD 14.0 30.7 26.7
Table 3: Antibacterial activity of trimethoprim (TMP), physical mixture (PM), kneaded (KN), freeze-dried (FD) and spray-dried (SD) systems against bacterial test organism.