I use 4cc on does right after giving birth. I never use it any other time on females or kids because it is unsafe during pregnancy. I give an adult billy 4cc also, but only use it once a year. I just don't like it.
Thanks for the info, I've been leaning towards Valbazen. I wanted a "all around" dewormer. & It seems in my area Valbazen is used, even in ads locally for goats for sale they say how even kids have been "given 1st CDT shot & dewormed with Valbazen" .....So I was thinking it was a good choice for my area (Pennsylvania).