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Title: Will never use again!
Review: I am always a bit wary of these types of medications...something strong enough to stay in your pet's body for a whole month while wreaking havoc on insects they encounter. But at the suggestion of my vet, I put my older cat on Program. Shortly after his second month's dose, I noticed he was drinking a LOT of water all of a sudden. Took him in to the vet & he is in early renal failure. Can't say for certain that these chemicals are the culprit, but I can't imagine they were good for his kidneys. I threw these expensive chemicals out & will be relying on natural stuff like food grade Diatomaceous Earth for flea issues in the future.
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