You would have to verify the ingredients in the treats are safe for cats. What treat are you using in case someone here might have an idea? Did you go online and compare the dog treat ingredients to that of the cat ones to see if there are differences?
Frankly, if it were me, I'd probably toss them and go buy the ones for cats - just to be on the safe side.
So far, the worst thing I've found is occasional increased hyperactivity. If this hasn't happened, you should be fine. They DO make a formula for cats, though.
Thanks! Yes I thought these were for cats that was what I thought I had ordered. Should have looked at the bag closer. Everyone seems okay so far thank goodness! I will definitely be tossing this bag and ordering the cat version.