Parasite prevention is easier with our award-winning Twist-N-Apply tube. Simply twist the tip to break the seal and apply! No need to remove the cap. **Your pet must have a current heartworm test result on file with your veterinarian in order to be prescribed heartworm medication. Please visit your veterinarian to have this test performed annually to protect them.** Protect your pet from pesky pests with Revolt Topical Solution for Dogs®. This topical parasiticide is formulated to be applied to the skin of canine companions who are six weeks of age and older. It prevents heartworm disease, treats and controls sarcoptic mange, kills fleas and treats flea infestations. Proudly manufactured and packed in the USA! **We directly source prescription medications from manufacturers and wholesale distributors registered with the FDA and licensed by applicable state boards. Guaranteed genuine, and where applicable, backed by the manufacturer.**