Heartworm Treatment Cost in Louisiana (2026)
Vet costs in Louisiana are 15% below national avg, so heartworm treatment prices run lower here too. Exact costs depend on your pet's size, age, and which clinic you use. The breakdown below shows what Louisiana clinics charge for heartworm treatment in 2026, how each line item compares nationally, and practical ways to save. Low-cost clinics and humane societies can cut some of these prices by half or more.
Vet Cost by City in Louisiana
| City | Wellness Exam |
|---|---|
| New Orleans | $57 |
| Baton Rouge | $56 |
| Shreveport | $53 |
| Lafayette | $54 |
Heartworm Treatment Cost in Louisiana — FAQ
How much does heartworm treatment cost for a dog in Louisiana?
Heartworm treatment in Louisiana averages $1,280 in 2026 — 15% below the national average. The standard melarsomine protocol (3 injections over 2 months plus pre-treatment bloodwork, X-rays, and strict exercise restriction) typically runs $1,000–$2,500 total. Annual heartworm prevention costs $100 and is far less expensive.
Is there a cheaper heartworm treatment option in Louisiana?
The 'slow kill' method (monthly ivermectin without melarsomine) is cheaper but takes 1–2 years, doesn't kill adult worms directly, and is no longer recommended by the American Heartworm Society due to resistance concerns. The standard melarsomine protocol at $1,280 in Louisiana is the only AHS-approved treatment. Humane societies and veterinary schools sometimes offer discounted treatment.
What happens if heartworms are left untreated in Louisiana?
Untreated heartworm disease is fatal. Adult worms grow up to 12 inches long inside the heart and pulmonary arteries, causing progressive heart and lung damage. Dogs with heavy worm burdens develop congestive heart failure within 1–3 years. In Louisiana, heartworm prevention costs $100/year — about 8% of what treatment costs. Prevention is the clear choice.
Other Vet Procedure Costs in Louisiana
Heartworm Treatment Cost in Other States
See full vet cost breakdown for Louisiana: