Available in a dial-a-dose syringe, Equest with its 13-week dosing interval is the longest lasting routine wormer. Controls with a single dose the adult and larval stages of roundworms including migrating large redworm larvae and the inhibited and developing stages of encysted small redworm larvae; also controls bots. One syringe treats a 575kg horse. Active ingredient – Moxidectin. POM-VPS.