I'm from a farm too, mostly cattle and horses. My horses
got sick same time that my intestines blew open, last spring(and they were on prevention wormer). I have many many types of parasites, including rounds and flukes. I've been on sharkmans since, it saved my life. Slowly working my way back from the edge of death. Drs are absolutely worthless here, I even went to Mayo and they refused to test me. I've never purchased the vermox on Ebay.