Anybody use Verm-X?

Used to use it on one of our dogs - when we got him as a puppy his breeder manufactured a dog food with it in. When we took the pup to the vets for his jabs, the vet was sceptical and suggested we should worm him anyway, and he was riddled with the little critters....:yellowcarded: To be honest, that pretty much did it for me, and I have no faith in it for worm prevention...
 
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