I have an indoor/outdoor cat who comes in most nights (99% of the time
during our harsh winters) and who is confined to a large, warm basement
room (in the same room as our computers) with the door shut. Other
people in the house have allergies, so generally she is not allowed to
wander.

The problem is, we now have an invasion of mice who are eating and
defecating throughout the basement. I've seem them run over/under the
fluorescent light fixtures, and the sonic mouse deterrant we have
doesn't seem to work anymore, though I think it did when we first got
it a few years ago. On a trial basis, I've also let the cat loose
several times in the basement to investigate, but she never comes up
with anything. Unfortunately, she is not much of a mouser, and just
kills birds most of the time, hence her prescription for Drontal.

My questions are: is it safe to put open Warfarin (looks like little
seed packets) boxes around the basement, espc. in the room the cat
sleeps in, as well as another room which she stays in from time to
time.

Also, has anyone had any accidents with house pets, cats, etc while
using Warfarin in their house? I would assume or at least hope that
most animals like cats would be repulsed by the smell of the Warfarin
and not eat it? Unless it was flavoured to appeal to mice?

Finally, if the mice did eat the Warfarin, and by some chance the cat
came upon them, would they be poisoned by eating or mauling the dead
mice?

The people I share the house with are not huge pet lovers, and more
importantly, have lost patience with trying to eradicate the mouse
problem with more milder methods, so I'm trying to see if the Warfarin
can be a viable option- or at least not a fatal one.

Thanks for any input