Hylartil Vet Contra-indications, warnings, etc Withdrawal period Not to be used in horses intended for human consumption. Treated horses may never be used for human consumption. The horse must have been declared as not intended for human consumption under national horse passport legislation. Transient swelling may occur at the injection site. Keep out of the reach of children. For animal treatment only. Directly after use of this product, hands and exposed skin should be washed thoroughly. Dispose of any unused product and empty containers in accordance with guidance from your local waste regulation agency authority.