A few years ago I had a rat problem. I bought those little round poison balls. After they went through about $50 worth I asked the guy at the counter WTH. He said they don't eat it on-site. They take it with them and stash it.
So, I bought the solid type. Look like a long cube with a hole in the middle. I mounted a 12" stiff wire on a board. Slid about 5 of those cubes on. Now they had to eat it there. No carry out. Solved the problem pretty quickly.
Lol- they will more likely get a tummy ache, get lissed about it, a d lash out at everything and everyone within chomping distance
We have tried both types. Neither type seemed to work for us for rats or mice. Supposedly with the old D’con they went outside to get water and died outside your home. But we had plenty who died in walls or we had to hunt for their bodies in our basement. Sometimes the stench was so bad it was hard to tell where it was coming from. The traps seemed to work the best, but right now we have two feral cats that we put food and water out for. I am not sure how many mice and rats they kill, but their presence seems to have solved our rodent problems.