Antibiotics
| Drug Withdrawal and Milk Discard Times of Macrolides | |||
| Macrolide | Species | Withdrawal Time (days) | Milk Discard Time (hr) |
| Erythromycin | Cattle | 14 | 36-72 |
| Pigs | 7 | ||
| Tylosin | Cattle | 21 | 96 |
| Pigs | 14 | ||
| Tilmicosin | Cattle | 28 | 0 |
| Tulathromycin | Cattle | 18 | |
| Swine | 5 | ||
| Gamithromycin | Cattle | 63a | |
a EU withdrawal. Withdrawal period for USA (35 days) pending; withdrawal period for Canada is 49 days.
