WHAT ARE THE POSSIBLE SIDE EFFECTS OF OXYMORPHONE (OPANA, OPANA (ER):
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using oxymorphone and call your doctor at once if you have a serious side effect such as:
shallow breathing, slow heartbeat;
cold, clammy skin;
severe weakness or dizziness; or
feeling light-headed, fainting.
Less serious side effects are more likely to occur, such as:
OPANA is indicated for the management of acute pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate.
Limitations Of Use:
Because of the risks of addiction, abuse, and misuse with opioids, even at recommended doses [see WARNINGS AND PRECAUTIONS], reserve OPANA for use in patients for whom alternative treatment options [e.g., non-opioid analgesics or opioid combination products.