I never got any painkillers when I had mine removed.
I can't help you with your question but I had a friend who went into surgery and he was on an anavar cycle. He was okay, but it might not apply to you since they gave him anestetics.
The main problem with the pain killers it the tylonel in them. It is harsh on the liver. It would be nice if doctors would prescrib a pill that had synsetic codiene in them without the acetiaminaphine.