Hi stranger! Signing up for MypetMD is easy, free and puts the most relevant content at your fingertips.

Get Instant Access To

  • 24/7 alerts for pet-related recalls

  • Your own library of articles, blogs, and favorite pet names

  • Tools designed to keep your pets happy and healthy

or Connect with Facebook

By joining petMD, you agree to the Privacy Policy.

PetMD Seal

Lungworms in Cats




Lungworms are treatable with anti-parasitic (anthelminthic) medications such as:


  • Fenbendazole
  • Albendazole
  • Ivermectin
  • Praziquantel
  • Levamisole


These medications should eradicate the worms over time and will help clear the animal of the infection. In severe cases, where secondary infections and lung damage have occurred, other medications such as corticosteroids or antibiotics may be necessary to help the animal recover.


Living and Management


An infection with lungworms does not typically last long. The cat often eliminates the worms by coughing them up or excreting them through the feces. Then, as long as the prescribed medication is given and the cat does not develop a secondary lung disease such as pneumonia, the prognosis is good.


In severe cases, repeat X-rays or fecal examinations may be needed to follow up.




Cats should be kept indoors to prevent exposure to rodents, birds, or other animals which may carry the lungworm larvae.

Image: mtr via Shutterstock


Related Articles

Mid-Chest Inflammation in Dogs

An inflammation of the mid-chest area is usually caused by a bacterial infection or a fungus. It’s rare in dogs, but in severe cases it may be...

Asthma in Cats

Bronchitis is the term used to denote inflammation of the bronchi and bronchioles. Chronic bronchitis is a long-standing inflammation of the...

Fungal Infection (Blastomycosis) in Cats

Blastomycosis is a systematic yeastlike fungal infection caused by the organism Blastomyces dermatitidis, which thrives in wet environments,...

Fluid in Chest (Pleural Effusion) in Cats

Pleural effusion is the abnormal accumulation of fluid within the chest cavity, which is lined by a membrane -- the pleural lining. Learn more...