X2! Panacur and Safeguard liquid and paste are both 10% fenbendazole and I think they might even be made by the same company.It is the same as fenbendazole or SafeGuard, and here is some info in post #4 here: https://www.backyardchickens.com/t/416541/how-do-i-treat-with-safeguard
-Kathy