Since we have a lot of new members who may be having some surgeries (spaying, neutering, etc..) done on their boxers, I thought I would post this warning so that you can tell your vets to not use ace on your boxers. You can even print this out and let your vet read it.
http://www.flbr.org/AceWarning.htm
http://www.flbr.org/AceWarning.htm