Lungworms Average Cost

From 16 quotes ranging from $300 - 1,000

Average Cost


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What are Lungworms?

Slugs and snails are the carrier of lungworm larvae. Infection of your dog can occur by accidental or purposeful ingestion of the gastropod, and also by the transmission of larvae through the feces or saliva of infected dogs. Frogs are also believed to carry the parasite. Though death by lungworm is not common, it is known to be a risk as the result of infection. Younger dogs are more often to be found infected, and it has been noted that Cavalier King Charles Spaniels and Staffordshire Bull Terriers are represented the most frequently in studies.

The scientific name for lungworm is angiostrongylus vasorum. Infection with this parasitic nematode can present with a number of complications. Studies have shown the lungworm to be the cause for inflammatory reactions in the lungs, with severe consequences for many areas of the canine body, including congestive heart failure.


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Symptoms of Lungworms in Dogs

Though it has been noted that some dogs may be asymptomatic when infected with lungworm, two signs of infection that are most apparent are a chronic cough and respiratory strain upon exercise. Other symptoms may be:

  • Gagging
  • Vomiting
  • Loss of appetite
  • Weight loss
  • General malaise

In cases where the infection has progressed, severe respiratory distress and heart failure can occur. With migration of the larvae in various stages including adult lungworm throughout the body, damage to the brain, spinal cord, organs and more will be displayed with varying symptoms, according to the location of the infection.

Causes of Lungworms in Dogs

The lungworm is able to enter and multiply in the host, which is your dog, upon ingestion of third stage larvae. The third stage larvae then penetrate the gut wall and develop in the lymph nodes before entering the circulatory system. Adults of both sexes can then be found in the pulmonary circulatory system and the right ventricle. The worm will mature in the lungs, finally mating and lodging in the capillaries. With advanced stages of infection, it is often discovered that the lungs contain inflammatory nodules filled with eggs and larvae. Adult nematodes are seen in the capillaries, as well as the pulmonary arteries of dogs in the advanced state of disease. Cases are most often found in winter and spring, due to the abundance of gastropods found in the summer, with the disease developing over the next few months.

Diagnosis of Lungworms in Dogs

Diagnosis of angiostrongylus vasorum is not easily reached. Because of the absence of definitive clinical signs, dogs may remain infected and untreated, which can, unfortunately, lead to advanced degrees of disease severity. Dogs with this infection may present with signs of bleeding disorders and heart or lung disease. However, coughing is considered a sign of lungworm infection, which will be indicative to the veterinarian as to how best proceed in the diagnostic phase of the visit.

If the veterinarian does suspect that your pet in infected with lungworm, she will ask for a stool sample to be brought to the clinic. Several samples of fecal matter must be analyzed due to the fact that the presence of larvae in the feces may be intermittent. This diagnostic tool is considered the best option, with the procedure being called the Baermann test. The test is usually read after 8 hours, but in heavily infected dogs, results can show as positive after as little as 30 minutes.

X-rays may show lesions on organs or density in areas of the lungs, and blood work may show signs of anemia and clotting disorders. A bronchoscopy may be necessary in order to examine the washings for evidence of white blood cells, eggs, and larvae.

Treatment of Lungworms in Dogs

The treatment of lungworm in dogs will depend on the stage of the infection. Canines in the advanced phase of the illness will have a lower prognosis of recovery due to the possibility of damage to the heart and other organs such as the pancreas and kidneys, as a result of the presence of the lungworm throughout the body. However, success has been attained, and dogs with severe infection are given medication to destroy the lungworm and are then treated with corticosteroids to heal damaged lungs. The use of a bronchodilator is sometimes used in cases of pneumonia. At times, surgery may be needed in order to remove nodules.

An infection caught early can be treated with medication alone; however, it must be noted that the treatment is extensive, with the prescription being given four (4) times minimum, one week apart. Treatment may be to be repeated, or continued for two months.

Recovery of Lungworms in Dogs

Dogs who have gone through treatment for severe infection of lungworm will have a longer recovery period than a dog where treatment was given in the early days of infestation. Depending on the severity of symptoms at the time of diagnosis, and the advancement of the lungworm infection, most pet owners can expect a positive outcome for their dog.

In the case of a heavily infected pet who may have shown signs of respiratory distress, recovery will include rest, medication and perhaps a bronchodilator. Expectorants and diuretics may be used post-treatment as well to combat the effects of the lungworm on the body. Shortness of breath may occur throughout the healing process.

Monthly year-round treatment may be prescribed to prevent reinfection.

Lungworms Questions and Advice from Veterinary Professionals

Labrador cross
11 Years
Serious condition
0 found helpful
Serious condition

Has Symptoms

Lethargic, coughing, shivering,

Medication Used

Ronaxon antibiotics

My dog become unwell 3wks ago, I thought he had kennel cough cos he had the same sort of cough 6yrs ago. I took him to the vet, they heard him coughing but said it would clear on its own, even tho he is an older dog. I waited for another week and took him back as he wasn't getting any better, and they give me antibiotics, 5 day coarse.Its the 3rd wk now and actually he is worse , so back to vets, explained his symptoms and as diagnosed him with lung worm, well they think, after taking bloods, and giving another coarse of antibiotics, that was yesterday, waiting on the results of blood test, plus payed £405 for the 3 visit's and my poor boy is still very unwell, I am really not happy, as I know lung worm can be fatal if not treated quickly . Don't even know if the antibiotics he as been given is actually to treat lungworm. I'm hoping so. So please any suggestions or advice would be most appreciated.

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Border Collie
7 Months
Moderate condition
1 found helpful
Moderate condition

My dog is having breathing difficulties after being diagnosed and treated for worms two weeks ago. My vet is out for holidays. Can I by an over the counter wormer to possibly continue the combat of possible lungworms? He was diagnosed with hook worms and perhaps whip worms but not sure. His breathing is labored and he has lack of energy although his appetite had increased from initial onset of symptoms. He’s a lab border collie mix.

Thank you

Dr. Michele King, DVM
Dr. Michele King, DVM
1611 Recommendations
Thank you for your email. Without examining him, I unfortunately can't recommend any medications for him, and the oral dewormers are very effective against the parasites that they treat, so if he was originally treated for common parasites, that may or may not be what is going on at this point. If you have an emergency clinic near you, it would be best to have him seen by a veterinarian to assess what may be going on with him, or your veterinarian should have an after hours contact while they are closed for the holidays, on their answering machine. I hope that everything goes okay with him.

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Shih Tzu
9 Years
Moderate condition
0 found helpful
Moderate condition

Has Symptoms

Loss of Appetite

Medication Used


My dog got deworm treatment about 2 weeks ago after being diagnosed with lungworm. He is still coughing, and is not eating at this point. How long should it take for this treatment to kick in?

Dr. Michele King, DVM
Dr. Michele King, DVM
1611 Recommendations
Sonny's degree of respiratory disease will depend on the number of lungworms that he was infected with. If he had a heavy infestation, the dying worms can cause their own problem and reactions - if he isn't eating and is still coughing, he should be rechecked by your veterinarian to see if he needs any further treatment.

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German Sheppard mix
4 Months
Mild condition
0 found helpful
Mild condition

Has Symptoms


I found a lot of slugs in my grass at home and I think my 4 month old puppy may have ate them and now is sick with diarrhea/ cow like patties!! Going on day 5 !! What do Yiu think could be the problem

Dr. Callum Turner, DVM
Dr. Callum Turner, DVM
3320 Recommendations

It may be that Chance ate slugs or something else from the garden which is causing some gastric upset which may last as long as ten days; it is also possible that slugs carrying parasites have infected Chance too. Treatment would have to be given by your Veterinarian as in both cases the treatment consists of prescription medications. Until you visit your Veterinarian, make sure that chance remains hydrated. Regards Dr Callum Turner DVM

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