My dog has the following symptoms: dizzy, lack of appetite, poor eye sight, sleeps a lot and thin hair. She is old and may have had a stroke not shore. The vet gave her protozone is there anything I can do? Thank you for your time

I don't recognize 'protozone'. Are you sure your are spelling it correctly? If your dog is old, and the symptoms seem to show that, then all you can do is make your pet as comfortable as possible and lots of attention.

Dog is pacing in circles not drinking water and drooling