I had normal house ants and I used these and they worked really well. I haven't got any pets so I didn't have to worry about pets potentially chewing on them, so I don't know if that's a risk or not. But I haven't had any ants return so they must've taken the poison back to the nest and killed off the whole thing, as the product claims. YMMV but it's worth a try and they're not very expensive.

Edit: changed the link because it was wrong.