I go to the Dr on Monday and I really don't know what to say, I have been on many Strong Pain Killers, and I am running out of options, can someone PLEASE TELL ME WHAT MG EXALGO would be equal to Opana ER 40 MG. I know Exalgo comes in 4 mg 8 mg and 16 mg, what Mg Is Even Remotely Close? I know Exalgo is not as strong as Opana Er, So Please be as precise as possible. THANK YOU. NewYorkGuy44.