Hello, thanks for your question today! I am Dr. Drew, and I am a licensed veterinarian. I'll be happy to help you in any way I can.
Carprofen should not cause lethargy or nonresponsiveness, so Mocha may be intolerant of this medicine, and I would suggest not giving additional doses.
Instead, you should call your vet and ask about trying a different anti inflammatory/pain medicine, that perhaps may be tolerated better by Mocha.