[DogFoodie]

I understand hating the chemicals. 🙁

I use the Sentinel Spectrum for heartworm protection for my dogs now. My integrative vet recommends it and uses it for her own dog. It has the added benefit of containing Lufenuron, which essentially makes adult fleas infertile, reducing the number of fleas in your environment. It offers no protection against ticks, which your Nexgard does. Nexgard kills adult fleas. My vet suggested that for a heavy infestation, both could be used together.

I recently learned about a new non-prescription product that is a spot-on for fleas and ticks called Activyl, but I know very little about it.

What are you currently using for heartworm protection?