Did your vet suggest any type of gentle exercise such as aquatic therapy? Otherwise known as swimming in a heated pool, one minute of swimming is equivalent to 4 minutes of running, easy on the joints and might lift her mood a little.
If that’s not an option, see if your vet can prescribe pain meds that come in a liquid form. It might be easier to dispense with a small syringe.
“Supplements are not medication, they are not FDA approved. They are food supplements, not intended to diagnose, treat, or cure”
Per the search engine here: /forums/search/supplements/
