Merck Manual

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Drug Withdrawal and Milk Discard Times of Sulfonamides

Drug Withdrawal and Milk Discard Times of Sulfonamides

Sulfonamide

Species

Withdrawal Time (days)

Milk Discard Time (hr)

Sulfamethazine

Cattle

10a

96

Pigs

14

Sulfabromethazine

Cattle

10

96

Triple sulfonamide solutionb

Cattle

10

96

Sulfadimethoxidine

Cattle

7

60

a 28 days for slow-release bolus

b 8% sodium sulfamethazine, 8% sodium sulfapyridine, 8% sodium sulfathiazole