Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics The concomitant use of opioids with other opioid analgesics, like butorphanol, nalbuphine, pentazocine, may perhaps lessen the analgesic result of oxycodone and acetaminophen tablets and/or precipitate withdrawal symptoms. Recommend patient to stay away from concomitant use of such drug