Give Vecoxan as soon as you can....... this the right age/time for coccidiosis to strike . I am assuming the kids are all up to date with clostridial vaccinations ?
You can buy Vecoxan over the counter.........it does not have to come from the Vet
I am not sure about cocci, at nearly 100quid a bottle it wouldn't be the first drug I tried..., especially if no diaorrhea. Also cocci in older goats (as opposed to young kids) is quite rare.
Another cause for anaemia could be fluke, if yours have been out grazing recently and it's quite wet in your fields?
I have found Panacur doesn't work on my goats anymore, been using Oramec for last two years.
Has your girl got a raised temperature? Any heavy breathing?
So sorry for you, you must be really worried now...