This question was asked on VIN a while ago. They drug company probably didn't feel like testing it on cats. As far as the ingredients, there are no cat-specific precautions. The same precautions apply to cats as for dogs- don't use in patients with sensitivity to any of the ingredients, not in animals with ruptured ear drums, and not for an extended period of time (longer than 2 weeks or so). I have used similar drugs in cats without any problems.

Thanks for the information....you confirmed what I thought.