Complex sentence: It is not indicated for use in acute pain, pain that is expected to last only for a short period of time, or post-operative pain, nor is it indicated or recommended for use in the treatment of opioid addiction.
Split into simpler sentences: It is not indicated for use in acute pain, pain that is expected to last only for a short period of time, or post-operative pain. Nor is it indicated or recommended for use in the treatment of opioid addiction.