Holistic Vet, I'm interested in learning about natural heartworm prevention. I have a seven year old English Cocker Spaniel who has been dewormed with Drontal Plus/Cantel every three months as a precaution. He was dewormed with Cantel in February 2013, and for some reason, the vet also dewormed him with Strongid in March (which was about a month apart rather...

Most Holistic and Homeopathic veterinarians warn against buying into the profitable pill solution for heartworm prevention. It just isn't natural.