Please let me know the half life of oxycodone and the amount of time to have a clean drug screen? I also have a patient on methadone and I need to know the answer to same question as I asked of oxycodone? I also have a patient who has hepatitis C, who wants to know these answers as it pertains to them. Can you give me an approximate time of elimination of the above medications as it pertains to a patient with hepatitis C with only minor inflammation on liver biopsy? Thanks SB