Yeah, I'm going to say no to that. Cats notoriously have kidney issues (glancing over at my ginger dude who had to have one of them removed last year) so I can't imagine really any version of these drugs being truly safe for feline use. I mean, crap, 90% of everything on the planet is toxic to cats to some degree. (OK, maybe not, but my god it sure feels like when I check the use/application of waves hands around house in relation to cats)