Strinacin II Contra-indications, warnings, etc STRINACIN II should not be used in animals with functionally mature rumens. For animal treatment only. Protective gloves should be worn to avoid skin sensitization, which may occur when crushing the bolus of this product. Wash hands after use. Avoid direct contact with skin and eyes. If contact occurs, wash affected area with copious amounts of water. Seek medical advice if irritation persists. Withdrawal periods Animals must not be slaughtered for human consumption during treatment. Calves may be slaughtered for human consumption only after 15 days from the last treatment.