I had given my Black Lab Rimaydl, perscription only, non steroid for arthritis.
I would suggest taking to Vet, have blood work, and if everything check's out,start the medicine..they will monitor liver function while on the med..
My Lab passed away after 14 yr's. I did have him on the medicine, and it really helped him..If he had not taken this he would not even be able to get up and down..helped him to be functional everyday.. proably have other med's also, but I know this is used quite often,,,I have answered this truthfully, and hope it may be of some help to you...
Best regard's
Debo