Ivermectin

[Bob & Amber Roberts <mlaboure@flash.net>]

I had the same results using Zimectrin.  My vet told me that I didn't
need to worm every two months.  Said it wouldn't hurt the horse but was
a waste of money.  So the next time I was ready to worm (2 mo.) I had a
fecal sample done.  No worms!  So I believed my vet.  I still use
Zimectrin but not as often.

Amber