NILVAX is a pre-lamb vaccine for sheep that provides clostridial protection for the 5 most common clostridial diseases: Pulpy Kidney, Malignant Oedema, Tetanus, Black Disease and Blackleg. Nilvax also contains levamisole which enhances the sheep’s immune response to all 5 clostridial diseases and controls gastrointestinal roundworms and lungworms. Contains selenium.