To my knowledge, this is the "official" list of rodenticides that that are used in commercial rat poisons.....
http://npic.orst.edu/factsheets/rodenticides.pdf
None of them list water imbalance.....either in excess or shortage......as the cause of death. (That includes the corn gluten meal in RatX). None of them take advantage of the rat's inability to burp or vomit......except for the fact that once ingested, it stays with them.....they can't chuck it up. If a safe product existed that killed rats that couldn't burp or vomit truly worked, wouldn't somebody market that instead? They would own the market if they did.
The ones that come closest to the holy grail of actually killing rats, with minimal risk of secondary poisoning to non-targets are the Vitamin D3 products......Terad 3 from Bell Labs, and some others. But there is a risk to anything if they get to the raw bait......so bait stations are a must. ALWAYS use bait stations.
But if you want to avoid use of baits in general, the single best method is exclusion......no food, no water and no shelter. If you can pull that off with 100% success, rats will move on or starve to death.
http://npic.orst.edu/factsheets/rodenticides.pdf
None of them list water imbalance.....either in excess or shortage......as the cause of death. (That includes the corn gluten meal in RatX). None of them take advantage of the rat's inability to burp or vomit......except for the fact that once ingested, it stays with them.....they can't chuck it up. If a safe product existed that killed rats that couldn't burp or vomit truly worked, wouldn't somebody market that instead? They would own the market if they did.
The ones that come closest to the holy grail of actually killing rats, with minimal risk of secondary poisoning to non-targets are the Vitamin D3 products......Terad 3 from Bell Labs, and some others. But there is a risk to anything if they get to the raw bait......so bait stations are a must. ALWAYS use bait stations.
But if you want to avoid use of baits in general, the single best method is exclusion......no food, no water and no shelter. If you can pull that off with 100% success, rats will move on or starve to death.