Cephalosporin | Withdrawal Time | Milk Discard Time |
---|---|---|
Ceftiofur | 2–16 days, depending on formulation | |
Sodium cephapirin (intramammary) | 4 days before slaughter | 4 days |
Benzathine cephapirin (dry-cow treatment) | 42 days after latest infusion | 3 days after calving—milk not used for food |