jason bruni, TX 6/2/2011 11:28:02 AM this is to louise, how much salt did u use? do u feed the salt then feed the water or do u make saltwater then feed? how long does it take to work? i am in the same situation im 2hr from the vet and my 100lb lab just ate a whole pack of rat poison, i have no peroxide and have tried half a bottle of mustard with no effect. i have given him 2 tablespoons of salt and a glass of water, is more recommended?