My vet confirmed that MetCam is in fact in somewhat common usage for cats now, though my read this afternoon of a good vet's website (
www.2ndchance.info; Dr. Hines) about cat analgesics in general is not so confident.
One always has to balance the pain your cat is or might be feeling (and it's so hard to tell... they are such stoic and brave sufferers, God bless 'em...) with the possible life-shortening or threatening side-effects.
I at least confirmed that Tylenol is an ABSOLUTE NO-NO (1 Extra-Strength Tylenol WILL kill your cat), that aspirin is also a bit tricky because of some missing metabolizing enzymes in the cat's liver, which seems to be a broad-based problem with many human drugs you'd give cats.
However, some seemingly safe possibilities are: Methocarbamol, a rather tame and apparently safe muscle relaxant used for arthritic pain relief, and even more interesting:
Most
all of the narcotics, like Vicodin, Demerol, Morphine and OxyContin!. Wow, huh Dottie! doin' your Golden Years on a buzz! I may have to shave a bit of Vicodin off my dose (also arthritis. "god" punishes atheists, eh catman?) and see if she's willing to do Trix for Hydrocodone! Yee-Hah!
We also have wild catnip in our garden and this may stimulate her. Hey; a cocktail of Oxy and Kitty-wanna! Yippee.
(Hmmm... I seem to be getting a bit carried away here. OK: Breathe. Breathe. There. I'm better now.)
She also had some dermatitis on her lower (rearmost) upper back from, apparently, a lack of general grooming. There's some smalll open lesions that were very sensitive. As per the vet, we've applied some cortisone creme mixed with the analgesic version of topical OTC antibiotics, and within two days these spots have almost disappeared.
As well, he noticed that she was not effectively grooming herself past about halfways down her spine, due entirely to arthritic stiffness and/or pain. So now I'm brushing this area with a very finely toothed flea comb which removes all easily lifted hair. That will cool her back (it's been hot here) and will also relieve the itchiness or possible twitch-causing pain.
So there we have it for now. I hope this helps her for another few months, perhaps even a year. I realize she can't live forever, but hey; I'm trying!