Oxymorphone is a generic and active ingredient in the branded drug Opana ER 40 mg. This medicine is used to treat severe pain in patients. It is an Extended-Release (ER) medication that cannot be used as needed. Its dose can be availed in tablet form.

The manufacturer of the eight-sided Opana ER 40 mg pill is Endo Pharmaceuticals. This medication was first approved by the U.S. Food and Drug Administration (FDA) in 2006. After that, the manufacturer company reformulated Opana ER tablet in such a way that the drug could not be misused.

Function of Opana ER 40 mg Drug

The yellow 40 mg of Opana ER medicine is considered a Schedule II controlled substance. It belongs to the class of opioid agonist analgesic which acts on the central nervous system. This drug binds with mu-opioid receptors in the brain and this is how it responds to pain.

Side Effects of Opana ER Medication

You may feel adverse effects after taking drugs which are given below:-

• Drowsiness
• Headache
• Constipation
• Nausea
• Confusion
• Fast heartbeat
• Extreme tiredness

Precautions

• Do not take the dose with other drugs due to drug interaction it may slow down your breathing.
• Do not take this drug with alcoholic beverages because it will make you dizzy.
• Overdose of Opana ER mg may even cause death.
• Before starting treatment, inform to doctor about your health history.

Generic versions of Opana ER are approved by the U.S. FDA, however, Opana ER branded drug is discontinued in the United States.