Adding flavoring to water

My Papillon recently had surgery for bladder stones, calcium oxalater. The vet want him to drink more water but he doesn’t want to drink that much. I was thinking about adding this all natural flavoring to his water.Please let me know what you think about it. He’ll only need about 3 drops or so.

 

Answer from Dr. Gaylord Brown:
I certainly do not believe they would harm your dog. I have never used these drops, so I do not know if a dog would like them.