Équin-Libre

Is your horse on Prascend?
If so, you may have been like this owner and put their horses pills pre-broken in half in a convenient container in the barn. Or maybe you prepare feed bags with all medications already in them.
You may inadvertently be making your medicine less effective. Pergolide aka the drug name for Prascend is very finicky and needs to be protected from light and air. The blister pack is filled with nitrogen and blocks UV rays. They can start to lose their effectiveness after only 24 hours of being out of the blister pack.