Lisa Dubé Forman May 14, 2018 Health Recommended Heartworm Preventative for Irish Wolfhounds & Sighthounds Lisa Dubé Forman May 14, 2018 Health Heartworm preventative recommendations for Sighthounds by Dr. W. Jean Dodds, DVM, is and has been available via her popular Pet Health Resource Blog. If you missed it -- here is the abbreviated info from her "Quick Guide to Heartworm Preventives."