What Are Some Cures for Heartworm in Dogs?

Canine heartworm disease is the result of a parasitic worm infestation. These worms, dirofilaria immitis, make their home in the hearts of dogs and may eventually cause problems with circulation and heart function. As many as 300 worms can live in the arteries at once, causing blockages and other problems. The worms can be as long as 14 inches for females, and 7 inches for males. If left untreated the illness can be fatal. Seeking medical treatment as soon as possible is the best way to ensure appropriate cure.

  1. Symptoms

    • Coughing is the most common symptom of heartworm disease. The cough is generally soft and dry sounding and is due to the infestation moving towards the lungs. Weight loss and lethargy are other early warning signs, as most owners will notice dogs struggling to play or exercise. As the worms move from the heart, they will infect the lungs and liver before moving on to other vital organs. It is imperative that owners seek the assistance of a veterinarian as soon as symptoms begin, since the infestation may be manageable in the early stages. Preventative measures are generally the easiest and least expensive method of dealing with heartworm, though a number of medicines are also available for treatment.

    Imidacloprid

    • Imidacloprid is an insecticide used in conjunction with the parasiticide moxidectin as a topical application for prevention and treatment of immature heartworms. The combination is a prescription medication used to treat heartworm, fleas and a number of other parasites. It is used commercially in Advantage monthly, which is applied to the dog's skin once a month. The medication causes paralysis and death of heartworm and is approved for dogs seven weeks of age and older. Few negative effects have been reported, though facial swelling, scratching and other flu-like or allergy symptoms should be addressed by a veterinarian.

    Ivermectin

    • Ivermectin was developed in 1980 and has become among the most popular small animal drugs on the market. The drug targets parasites of all types that live in dogs, including heartworms. Its use is generally controlled by veterinarians and administered by injection on a monthly basis. It is available commercially as a beef flavored chewable treat under the name Heartgard Plus. Ivermectin works by paralyzing and killing the parasite. The medicine targets immature heartworms and is approved for puppies as young as six weeks of age.

    Milbemycin Oxime

    • Milbemycin Oxime, sold under the commercial name Interceptor, protects dogs from most types of worms and a number of parasites. It comes as a beef-flavored tablet and may be used for puppies older than 4 weeks. The drug affects the nervous system of the parasite, leading to death. Milbemycin Oxime presents with few side effects, the most common of which is lethargy and vomiting. If the animal shows signs of seizures, weakness or loss of appetite, it is important to contact a veterinarian as soon as possible.