Does heartworm treatment shorten a dogs life?
John Thompson
Updated on January 06, 2026
This treatment does not actually kill the worms, however it does decrease their lifespan; keep in mind, however, that the average heartworm can live six years, so shortening that lifespan could still mean your dog having a heartworm infection for four more years.
How Long Can dogs live after heartworm treatment?
Dogs with heartworm disease can live high-quality lives as long as they are given appropriate care. After completing treatment and following your veterinarian's recommenda- tions on heartworm disease testing and prevention, the chances of any long-term effects are very low.Do heartworms shorten a dog's life after treatment?
Although there's a risk involved in heartworm treatment, there's a greater risk in not taking care of the infestation. Once in a while, a dog succumbs during the course of heartworm treatment. However, he's almost certainly going to have a shortened life expectancy if heartworms are left alone.Does heartworm affect a dog's lifespan?
“Heartworm disease causes lasting damage to the heart, lungs, and arteries, and can negatively affect the dog's health and quality of life.” If the organ damage from heartworms is severe enough, it may be fatal.Do dogs survive heartworm treatment?
My dog has been diagnosed with heartworm disease. What is the treatment? There is some risk involved in treating dogs with heartworms, although fatalities are rare. "A new drug is available that does not have as many side effects, allowing successful treatment of more than 95% of dogs with heartworms."Heartworm Life Cycle for Professionals
Do dogs get depressed during heartworm treatment?
Twenty-six dogs (52%) experienced minor complications, such as injection site reactions, gastrointestinal signs (vomiting, diarrhea, inappetance), and behavioral changes (lethargy, depression) during or after heartworm treatment.What are the long term effects of heartworm?
The adult worms cause inflammation of the blood vessels and can block blood flow leading to pulmonary thrombosis (clots in the lungs) and heart failure. Remember, heartworms are “foot-long” parasites and the damage they cause can be severe. Heartworm disease can also lead to liver or kidney failure.How does heartworm treatment affect dogs?
Heartworm preventives do not kill adult heartworms. Also, giving a heartworm preventive to a dog infected with adult heartworms may be harmful or deadly. If microfilariae are in the dog's bloodstream, the preventive may cause the microfilariae to suddenly die, triggering a shock-like reaction and possibly death.What to expect after dog has heartworm treatment?
After treatment, the adult worms die and are carried by the blood to the lungs where they lodge in small blood vessels. There they decompose and are absorbed by the body over a period of several months. Reactions to the drugs are not uncommon, and there is always some risk involved in treating a dog for heartworms.Is heartworm medicine bad for dogs?
Given at the proper doses and under the supervision of a veterinarian, ivermectin is safe for most dogs and is very effective in treating and preventing a number of parasites. However, a dog with the mutation who ingests the drug can have a severe, life-threatening reaction called ivermectin toxicity.Should I adopt a dog that is heartworm positive?
Rescuing a heartworm positive dog is not for all adopters but for those who do, it is an exceptionally rewarding experience knowing you stepped up to save a life that others passed by and were willing to let perish. If you choose to “Treat-To-Adopt” you will take the dog home with you as if you are adopting the pet.How much does heartworm shorten a dogs life?
This treatment does not actually kill the worms, however it does decrease their lifespan; keep in mind, however, that the average heartworm can live six years, so shortening that lifespan could still mean your dog having a heartworm infection for four more years.What are the side effects of heartworm medication?
Oral Heartworm MedicationsThere are rarely side effects, if given at the proper dosage, but some dogs may experience vomiting, diarrhea, or incoordination. In the case of an allergic response to the heartworm medication, a dog may experience itching, hives, swelling of the face, or even seizures or shock.