Does freezing worm medicine ruin it?
I bought a year's supply of rotational worm meds for my horses and like an idiot and let them freeze, unfreeze, freeze. Ivermectin, pyrantel pamoate, prasiquantel. Are they now ineffective? I've heard different answers. Any help would be appreciated. I sure as heck hate to throw away $250 but if they're no good, I'll have to.