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The Veterinarian's Guide to Residue Avoidance Management

Withdrawal Date Calculator (WDC)

Use the FARAD Withdrawal Date Calculator (WDC) to determine the FDA-mandated waiting period following administration of a drug product at the approved label dose(s) in an approved animal species. To use this calculator, you must select (1) a drug product using either the product trade name or the active ingredient, (2) the approved animal species and (3) a date and time for product administration.


Enter in at least three letters from the Trade name or Active Ingredient:

Trade Name: 3 character minimum Try 25 characters or lessRequired for search by Trade
Active Ingredient: Required for search by Active3 character minimum Try 20 characters or less