KC-Defense™ is a safe, non-addictive, 100% natural homeopathic OTC medicine formulated especially for pets to relieve and soothe kennel cough and other respiratory tract infections. It may be used before visits to the vet, kennels, catteries, etc. or acutely to address an active infection. KC-Defense™ comes in convenient, dissolvable granule form. Safe and easy to administer, these pleasant tasting granules are simply sprinkled on your pet's tongue and rapidly absorbed in the mouth. All PetAlive® homeopathic products and biochemic tissue salts are manufactured in a FDA and cGMP registered pharmaceutical facility under the supervision of qualified homeopaths and responsible pharmacists. Individual ingredients are listed in the Homeopathic Pharmacopoeia of the United States (HPUS).