Merck Manual

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Drug Withdrawal and Milk Discard Times of Macrolides

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.