Are there any holistic or over the counter cat heartworm prevention? - Animal Hospital of Statesville

There are not. Vector and mosquito control can help, but still, those preventative products are essential. A lot of those preventative products also keep fleas and ticks away and help treat intestinal parasites.

Are there any holistic or over the counter cat heartworm prevention? - The Drake Center

No, nothing works. If you could put your cat in a bubble so they would never get bit by a mosquito, that would be great, but obviously, that's not plausible.