Keep your horse happy and healthy with the McTarnahans Workalin Counter-Irritant for Horses. This rubefacient counterirritant features mild blistering properties that aids in the temporary relief of minor stiffness and soreness caused by overexertion. Guaranteed and veterinarian recommended, this workalin treatment ensures lasting quality. This horse treatment features easy application and removal for accessibility. Use this counter-irritant with horses of all life stages.