molecule

Amiodarone

Molecule Description

Amiodarone is a medicine used to treat heart rhythm abnormalities. It belongs to...
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uses

Uses of Amiodarone

  • Rhythm disorders of the heart.
  • Rapid and abnormal heart rhythms (Tachyarrhythmias) that are associated with electrical pathway abnormalities (Wolf-Parkinson-White (WPW syndrome)).
  • Rapid and regular heartbeats (Atrial Flutter) or fast and irregular heartbeats (Atrial Fibrillation).
  • Sudden and violent, rapid, abnormal heartbeats (Paroxysmal Tachyarrhythmias), when there are no other alternatives that originate in the ventricles (ventricular), above the ventricles (supraventricula...
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  • Use with caution.
  • Medicines that can lengthen heartbeats (Clarithromycin, Ciprofloxacin).
  • Medicines used for heart diseases and high blood pressure (Propranolol, Diltiazem, Verapamil, Digoxin, Flecainide) for constipation (Bisacodyl, Senna), and to lower cholesterol (Simvastatin, Atorvasta...
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  • Amphotericin (antifungal), immunosuppressants (Hydrocortisone, Betamethasone, Prednisolone, Cyclosporine, Tacrolimus), anaesthesia medicines (Midazolam, Lidocaine, Fentanyl), Ergotamine (for migraine)...
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contraindications

Contraindications of Amiodarone

When should one not use Amiodarone

  • Allergy to Amiodarone or its components or Iodine.
  • History or signs of severe allergic reactions such as swelling of face, lips, throat, or tongue with swallowing or breathing problems and with or without rashes, itching.
  • Slow heart rate (Bradycardia), due to blockage of signals from one of the heart nodes (sinoatrial heart block). Nodes are areas in the heart which control heartbeat.
  • Similar problems with your nodes and you do not have a pacemaker (an artificial device that is used to replace heart nodes).
  • Past or present thyroid problems.
sideEffects

Side effects of Amiodarone

Common side effects of this drug are:

  • Jaundice (yellowing of eyes or skin), feeling sick, decreased hunger, pain the stomach, or high temperature (signs of liver damage).
  • Breathing difficulty, chest tightness, cough, wheeze (whistling sound while breathing), weight loss, fever (signs of lung disease, can be severe).
  • Irregular or erratic heartbeats (uncommon, but serious) – requires immediate medical attention.
  • Severe allergic reactions such as swelling of face, lips, throat or tongue with swallowing or breathing problems, even with or without rashes, itching, blistering or peeling of skin, fever, chills, hi...
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precautionsAndWarnings

Precautions and Warnings of Amiodarone

pregnancy

Pregnancy

Q:
Can I take Amiodarone during pregnancy?
A:
Amiodarone is not given during pregnancy as it has the potential to affect the thyroid of the unborn baby.
breastfeeding

Breast Feeding

Q:
Can I take Amiodarone while breastfeeding?
A:
Do not take if you are breastfeeding or plan to breastfeed; this is because Amiodarone is secreted well into the breast milk and may harm the baby.
driving

Driving

Q:
Can I drive if I have consumed Amiodarone?
A:
You can drive while taking Amiodarone. But if you experience any vision problems (Blurry eyesight is one of the side effects of Amiodarone), you are advised not to drive.
alcohol

Alcohol

Q:
Can I consume alcohol with Amiodarone?
A:
Amiodarone is helpful for delicate heart conditions, and alcohol is not suitable for the heart. This medicine should be used with caution if you have any liver problems. Because alcohol also damages the liver and you are advised not to consume alcohol.
otherGeneralWarnings

Other General Warnings

Talk to your doctor if
  • Heart, liver, or lung problems (asthma)
  • Vision problems (including due to damaged optic nerve - optic neuritis)
  • Elderly patients
  • Any artificial inserted devices in the heart (pacemaker – which controls heart rate, Implantable Cardioverted Defibrillator (ICD) – a device which detects any abnormal heart rate or rhythm)
  • Allergic skin reactions
modeOfAction

Mode of Action of Amiodarone

How Does It Work?

Balanced potassium levels are mandatory for normal heart rhythm. High potassium levels cause abnormal heart rhythms, which can be fatal. Amiodarone primarily acts by a dual mechanism of reducing potas...
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interactions

Interactions of Amiodarone

Interactions with other medicines

  • Medicines used to correct heart rhythm abnormalities (Sotalol, Quinidine, Procainamide, Disopyramide, or Bretylium).
  • Anti-infectives (injectable Erythromycin, Cotrimoxazole, Moxifloxacin or Pentamidine).
  • Medicines used to treat mental or behavioural disorders (Thioridazine, Chlorpromazine, Fluphenazine, Haloperidol, Pimozide, Amisulpiride, Lithium, Doxepin, Maprotiline, Sertindole,
  • or Amitriptyline).
  • Anti- malarials (Guinine, Mefloquine, Chloroquine or Halofantrine).
  • Anti-allergics (Terfenadine, Astemizole or Mizolastine).
  • Hepatitis C medications (Sofosbuvir, Simeprevir, Daclatasvir, or Ledispasvir).

Interactions with food items

Amiodarone does not interact with food, and one can take this medicine before or after meals with a glass of water.
dietaryRestrictions

Dietary Restrictions of Amiodarone

Grapefruit juice inhibits the breakdown of Amiodarone in the intestine. It is better to avoid grapefruit and its juice while on Amiodarone.
dosage

Dosage of Amiodarone

Overdose

An overdose with Amiodarone can be fatal. Care should be taken to avoid any overdose with this medicine. Overdose symptoms may include weakness, slow heart rate, feeling light-headed, or loss of consc...
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Missed a Dose

If you miss a dose of Amiodarone, take it as soon as you remember. However, if it is less than 8 hours for your next dosage, skip the missed dose and follow the regular dosing schedule. Do not take ex...
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Frequently Asked Questions (FAQs)

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Q: Amiodarone is a Class III Antiarrhythmic agent. What does this mean?

A: Antiarrhythmic agents are classified into four classes based on their mechanism of action and the targets they act. Class III Antiarrhythmic agents primarily work by decreasing potassium levels and controlling abnormal heart rhythms. Other medicines in this class are Dronedarone, Sotalol, Dofetilide, etc.

Q: What else should I know before taking Amiodarone?

  • Amiodarone stays in your blood for a long time. It can have some potency and protective action on your heart for up to 1 month after stopping the tablet, this should be remembered, especially if you a...
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  • Amiodarone can cause skin problems and increases your sensitivity to light.
  • You are advised to stay away from direct sunlight, use protective clothing and sunscreen lotions during treatment and up to 1 month after stopping Amiodarone.
Last Updated on: 05 Oct 2020 | 10:47 PM (IST)
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