<unk> (oral) is an analgesic opioid that is FDA approved for the {{{indicationType}}} of anesthesia; adjunct, anxiety, Due to dyspnea associated with pulmonary edema caused by acute left ventricular dysfunctionView additional information, obstetric pain, pain, acute (moderate to severe), pain, chronic (severe), in patients requiring daily long-term around-the-clock opioid analgesic, premedication for anesthetic procedure - surgical procedure..   Common adverse reactions include cardiovascular: hypotension (less than 10% ), dermatologic: pruritus (less than or equal to 15.2% ), sweating symptom (1% to less than 10% ), gastrointestinal: abdominal pain (1% to less than 10% ), constipation (4.1% to 27.6% ), nausea (2.9% to 33.1% ), vomiting (less than or equal to 15.6% ), xerostomia (1% to less than 10% ), neurologic: confusion (1% to less than 10% ), dizziness (5% to 17% ), headache (4% to 12% ), somnolence (2% to 19% ), respiratory: dyspnea (1% to less than 10% ), hypoxia (less than 10% ), other: fatigue (1% to less than 10% ), fever (1% to 14.2% ).
Oxymorphone 
Hydromorphone 
Butorphanol 
Morphine 
Nalorphine
Normorphine
Oxycodone
Dihydrocodeine