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Pacerone Oral

Generic Name: AMIODARONE - ORAL
Pronounced: (A-mi-OH-da-rone)

Pacerone Oral Warning

Though this medication often gives great benefits to people with irregular heartbeat, it may infrequently worsen an irregular heartbeat or cause serious (sometimes fatal) side effects. When starting treatment with this drug, your doctor may have you stay in the hospital for proper monitoring.

Amiodarone may take 2 weeks or longer to have an effect in your body. Also, this drug stays in your body for weeks to months, even after you are no longer taking it. Therefore, serious side effects may occur weeks to months after taking amiodarone. Serious side effects may include lung or liver problems. Tell your doctor immediately if you notice any symptoms of lung or liver problems such as cough, shortness of breath, chest pain, coughing up blood, persistent nausea/vomiting, dark urine, severe stomach/abdominal pain, or yellowing eyes/skin.

Pacerone Oral Side Effects

See also Warning section.

Nausea, vomiting, constipation, loss of appetite, shaking, or tiredness may occur. If any of these effects persist or worsen, tell your doctor promptly.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

  • easy bruising/bleeding
  • loss of coordination
  • tingling/numbness of the hands or feet
  • uncontrolled movements
  • new or worsening symptoms of heart failure (such as ankle/leg swelling, increased tiredness, increased shortness of breath when lying down)


Seek immediate medical attention if any of these rare but serious side effects occur:

  • faster/slower/more irregular heartbeat
  • severe dizziness
  • fainting


Amiodarone may infrequently cause thyroid problems. Either low thyroid function or overactive thyroid function may occur. Tell your doctor immediately if you develop any symptoms of low or overactive thyroid, including cold or heat intolerance, unexplained weight loss/gain, thinning hair, unusual sweating, nervousness, irritability, restlessness, or lump/growth in the front of the neck (goiter).

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