Well I don't know if those parasitic vet drugs are shortening pet's lives, but my point is that when the pets are properly diagnosed and confirmed to have parasites, the appropriate drugs don't seem to have a problem riding these pets of their parasites.
But in humans, some of you are making all sorts of claims as to why it's so much harder for humans to get test confirmation and somehow parasites in humans are able to adapt and evade drugs while the same parasites don't in pets. And why do vets and labs seem to have no problem confirming parasites in pets?
My conclusion is pets don't have to worry about being gullible and being taken in by supplement and gadget salesmen, regardless of what the salesman's intentions are. Not hating, just saying.