Opana ER Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Blood Pressure Drop Upon Standing
  • Decreased Lung Function
  • Problems With Eyesight
  • Visible Water Retention

If experienced, these tend to have a Less Severe expression

  • Abnormal Nervous System Function Affecting Mental Alertness
  • Abnormally Low Blood Pressure
  • Chronic Trouble Sleeping
  • Constipation
  • Diarrhea
  • Dizzy
  • Drowsiness
  • Dry Mouth
  • Excessive Sweating
  • Feel Like Throwing Up
  • Feeling Faint
  • Fever
  • Head Pain
  • Indigestion
  • Itching
  • Loss Of Appetite
  • Low Energy
  • Nervous
  • Sluggishness
  • Stomach Cramps
  • Throwing Up
  • Weight Loss

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Confused
  • Decreased Oxygen In The Tissues Or Blood

If experienced, these tend to have a Less Severe expression

  • Fast Heartbeat
  • Gas
  • Swelling Of The Abdomen

RARE side effects


If experienced, these tend to have a Severe expression

  • Adrenal Gland Problems
  • Altered Mental Status
  • Blocked Bowels With Decreased Peristaltic Movement
  • Blurred Vision
  • Cannot Empty Bladder
  • Decreased Pupil Size
  • Depression
  • Difficult Or Painful Urination
  • Extreme Breathing Difficulty
  • Extreme Loss Of Body Water
  • Hallucination
  • Heart Throbbing Or Pounding
  • High Blood Pressure
  • Hypersensitivity Drug Reaction
  • Inflammation Of Skin Caused By An Allergy
  • Seizures
  • Slow Heartbeat

If experienced, these tend to have a Less Severe expression

  • Agitation
  • Altered Interest In Having Sexual Intercourse
  • Clammy Skin
  • Drug-Induced Hot Flash
  • Extreme Sense Of Well Being
  • Feeling Unhappy Or Unwell
  • Feeling Weak
  • Hives
  • Inability To Have An Erection
  • Loss Of Memory
  • Problems Getting Pregnant
  • Skin Inflammation
  • Temporary Redness Of Face And Neck
  • Trouble Breathing

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.