Totally agree. From that list you mentioned, here are some examples of banned pain-killers.
fentanyl, and its derivatives; hydrocodone; hydromorphone; methadone; morphine; nicomorphine; oxycodone; oxymorphone; pentazocine; pethidine
However, what I am hearing more and more about being used frequently is Toradol (non steroidal anti-inflammatory drug). It is frequently prescribed to treat certain types of moderate to severe pain particularly after surgery. I just heard an interview with an ex-NFLer who was talking about NFL veteran players telling him he should use it to numb himself to pain. Fortunately for him, he had already tried it in college and said it relieved the pain, but really didn't like how it made him feel "drugged." He said it was a roller-coaster of highs-lows and stopped taking it.
I hope Charbonnet isn't hurt and these are all rumors by uninformed people. Just as much, I hope that if he is hurt the medical staff ethical enough to not pump him full of meds and send him out there to jeopardize the next 60-70 years of him walking without pain.