Originally Posted by Cowgirls Boots View Post
Quest was almost $100 for a powerpac and panacur was only $62.
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I don't quite understand this statement about a Quest power pack. You can't give Quest multiple times like you would for a Pancur power pack, so they don't make one. To deworm with Quest costs one tube per 1300# horse, or about $13. Not $100. I can deworm one horse seven times with $100 worth of Quest; that's 3 1/2 years for me, as I use it twice a year. If you gave a horse $100 worth of Quest in a 5 days, you'd most likely kill it.
I attended a seminar a few years back on deworming and 5 out of 5
Of the vets there recommended including Quest in a horse owner's deworming program. 2 of the 5 used Quest exclusively because it had no known resistance issues and because it does not kill dung beetles in droves like ivermectin does. 3 of these vets said they have only seen a few instances of Quest making seemingly healthy horses sick when it was given as directed: and all cases were in horses that had a higher parasite load than expected. I'm not saying the OPs horse fits this description; I'm simply repeating what they told me when I asked about problems with Quest before I began using it.
My neighbor has 3 minis and she uses Quest Plus each spring on them. But she gets an accurate weight first and then is very careful to give them a precise dose.
Quest does not have the same safety margin as other dewormers; that doesn't make it bad. It just means one has to be more careful when using it. Plus, it works so well it should NEVER be given to a sick or debilitated horse; I wouldn't give it to a foal or an elder horse either, or a horse with a high parasite load as it kills of worms very quickly.
I find it somewhat ironic that this dewormer has gotten a bad wrap because it works... I've used it for years with no issues. As GG said, I've had more issues with vaccinations that with using Quest.