we investigated the effects of four cysteine derivatives on 12 antibiotics , ampicillin ( abpc ) , amoxicillin ( ampc ) , sulbenicillin ( sbpc ) , cefazolin ( cez ) , cephalexin ( cex ) , cephalothin ( cet ) , oxytetracycline ( otc ) , doxycycline ( dotc ) , minocycline ( mino ) , erythromycin ( em ) , ribostamycin ( vsm ) and lincomycin ( lcm ) , widely used clinically in vitro with the minimum inhibitory concentration ( mic ) obtained by the liquid dilution method as an index .
C0002680
ampicillin
C0002645
amoxicillin