Merck Manual

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Drug Withdrawal and Milk Discard Times of Penicillins

Drug Withdrawal and Milk Discard Times of Penicillins

Penicillina

Species

Withdrawal Time (days)

Milk Discard Time (days)

Procaine penicillin G

Cattle

10 (at label dosage)

30 (at 20,000 IU/kg, bid)

3

Sheep

9

Pigs

7

Benzathine penicillin G

Cattle

30

Ampicillin

Cattle

6

Preruminant calves

15

Amoxicillin

Cattle

30

2

a All administered IM