QJ ANTIINFECTIVES FOR SYSTEMIC USE
QJ51 ANTIBACTERIALS FOR INTRAMAMMARY USE
QJ51D OTHER BETA-LACTAM ANTIBACTERIALS FOR INTRAMAMMARY USE
QJ51DB First-generation cephalosporins
QJ51DC Second-generation cephalosporins
QJ51DD Third-generation cephalosporins
QJ51DE Fourth-generation cephalosporins
Last updated: 2024-01-17