Several years ago my personal physician showed me a book about animal care. It was called "The?tag=thrif06-20 Pill Book Guide To Medication For Your Dog And Cat" (Affiliate Link).
I left there, went to my local book store, and ordered two copies - one for myself and one for my best friend who lived in another state. The book was a paperback and back then under $10.00
It by no means replaces my Vet but it sure has been a big help over the years.
By CPJ from Madison, AL