Which drugs have no withdraw time for cattle?

• A. Steroids
• B. Antihistamines
• C. NSAIDs
• D. Antibiotics

Answer: (A)

Withdrawal time is the minimum period after the last drug administration that meat or milk from a treated animal must not be sold or used, to let drug residues fall below safe limits. Most drugs used in cattle—like many antibiotics and NSAIDs—have clearly defined withdrawal times on their labels because residues can persist in edible tissues.

Steroids are often described in exam contexts as having no withdrawal time because, for certain corticosteroid products used in approved therapeutic regimens, there isn’t a labeled or mandated waiting period before slaughter or milk sale under those guidelines. This depends on the specific product and regulatory jurisdiction, so always check the exact label and local rules.