This is a pretty basic question, but one that gets lots of different answers. I will be getting a colt that just turned four months old June 26th, he has not been wormed. We will be moving him in the next few days to a friend of mine to finish his weaning, and then out to my house. I wanted to worm him at his birth barn, and leave the worms there. What do you guys use to worm colts? One vet in my area says strongid paste, one Shacklee soap (by the way, has anyone else heard of using that?), one says ivermectin, and some say oxibendazole. I DON'T want to hurt this little guy, I have big plans of long trails in a few years, but what is safe, and what works best in foals? I know all are safe for adult horses, but many say not before 6 months.....which should I use??? Thank you!