Heartworms pose a significant threat to the health of both cats and dogs, representing one of the most dangerous internal parasites. Unlike other common worms, heartworms are transmitted through mosquito bites. Immature heartworms, known as microfilaria, are transferred to a new host when an infected mosquito feeds on an animal. Once in the bloodstream, these microfilaria travel to the heart and lung’s blood vessels, where they mature into adult worms capable of reproduction. As the heartworm population increases, they obstruct blood flow, reducing the oxygen supply to the body’s vital organs and leading to severe damage. Left untreated, heartworm infections are almost invariably fatal.
Preventing heartworm infestation is crucial for all pets, especially since there is currently no definitive treatment available for cats. Infected felines can only receive supportive care to manage their symptoms and help them coexist with the heartworms, which typically have a lifespan of 5 to 7 years.
While heartworms can be treated in dogs, the process is often lengthy, expensive, and carries inherent risks. Furthermore, the damage caused by a heartworm infestation may be irreversible, even with successful treatment. A critical challenge in managing heartworms is their insidious nature; symptoms develop gradually and are often subtle, making early detection difficult. Regular testing can aid in diagnosis, but by the time adult heartworms are detected, the detrimental effects on the pet’s health have likely already begun.
Choosing the right heartworm preventative from the wide array of options available can be overwhelming. To assist pet owners, here are some of the top-rated topical heartworm preventatives currently on the market.
Leading Heartworm Preventatives
Revolution Cat
Revolution Cat is a versatile and effective 5-in-1 parasite preventative designed for felines. It not only protects against heartworms but also guards against fleas, roundworms, hookworms, and ear mites. Revolution Cat is a prescription-only medication, and a recent heartworm test is required for purchase. This topical solution is applied directly to your cat’s skin and must be administered every 30 days for continuous protection.
Revolution Dog
Similar to its feline counterpart, Revolution Dog offers comprehensive protection for canines. A single monthly application provides protection against fleas and heartworms, treats and controls ear mites and sarcoptic mange, and manages tick infestations. Available in various formulations based on your dog’s size, Revolution Dog can be safely administered to puppies as young as 6 weeks old. This prescription medication requires veterinary guidance to determine the appropriate dosage for your dog.
Revolution Plus Cat
Revolution Plus Cat is an advanced 6-in-1 solution offering extensive protection for cats and kittens. It combats fleas, ticks, ear mites, heartworms, roundworms, and hookworms, providing robust, all-in-one protection. This topical treatment is applied monthly and is suitable for kittens from 8 weeks of age.
Advantage Multi for Dogs
Advantage Multi is a highly regarded preventative that effectively stops heartworm disease and eliminates circulating microfilaria, preventing them from maturing into adult worms. It also eradicates fleas and treats infections of roundworms, hookworms, and whipworms. Like Revolution, Advantage Multi is a monthly topical application applied directly to the dog’s skin. Your veterinarian will determine the correct dosage based on your dog’s weight to ensure adequate protection.
Advantage Multi for Cats
Advantage Multi for cats provides a convenient, monthly topical application that kills fleas, treats and controls ear mites, roundworms, and hookworms, while also preventing heartworm disease. Consistent monthly administration is key to ensuring protection against these common parasites. Your veterinarian can help you select the appropriate dose for your cat based on their weight.
Revolution Puppy/Kitten
Specifically formulated for the youngest members of your pet family, Revolution Puppy/Kitten is a topical solution that requires monthly administration to ensure thorough protection. It covers fleas, ear mites, roundworms, hookworms, and heartworms, safeguarding your young pet’s health.
Ensuring Consistent Protection
Regardless of the preventative chosen, it is paramount to administer heartworm preventatives exactly as directed and on schedule to maintain year-round protection. Consulting with your veterinarian is the best way to address any questions or concerns regarding heartworm prevention and treatment for your beloved pets.
