My stable will do it if asked and if we supply the medications. My wife, a remarkable deal sleuth since we're both retired and on fixed incomes, found a link at discounthorsesupplies.com
for panacur that was really cheap and guaranteed (love that site). The direct link to the deal on panacur is http://www.petmeds.com/radio
We've used panacur before a number of times and it really does the job and our vet and stable master both agree it's a good way to go.
Just this old riders two cents.