Don't use Panacur, there is lots of resistance to it. Definitely best to check with your vets as said none licensed (except for Eprizero, but that's a pour-on) and so you would need to buy it from them anyway. A sheep wormer is most appropriate, but you need to know what species of worms you have for the right one. Most oral sheep wormers (drenches) need to be given to goats at 1.5 or twice the sheep dose