Opana ER is an opioid pain medication that affects your brain andmay cause the following side effects:Dizziness or drowsiness Headache Tiredness Pain in the stomach Nausea or vomiting ConstipationExperiencing these mild side effects symptomsare apparent, but you should consult your doctor if these mild side effects are unbearable or making your life too complicated.
You should also stop taking Opana ERand seek emergency medical assistance ASAP if you experience the following health issues while taking me...
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