Chewable Tablets NOW Pets Pet Relaxant is formulated to promote relaxation and contentment during changes to your pet’s daily routine, which can include separation, travel, and/or tension. This health supplement is made with natural botanicals and has been formulated by renowned veterinarian Dr. Barbara Royal, DVM, CVA, founder of The Royal Treatment Veterinary Center. For use in Dogs and Cats only. Federal law prohibits the off-label use of this product in ruminants.