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Atenolol

ANTIHYPERTENSIVE

Uses of Atenolol

  • Atenolol is used to treat high blood pressure. It is an antihypertensive medication that may be used alone or in combination with other antihypertensive agents.
  • Additionally, it is used to prevent angina (chest pain) and improve survival after a heart attack. Atenolol also helps manage myocardial infarction and cardiac dysrhythmias (abnormal heart rhythms).

Side effects of Atenolol

  • Diarrhoea 
  • Dizziness
  • Bradycardia (decreased heart rate)
  • Postural hypotension
  • Confusion
  • Nausea 
  • Fatigue 

How Atenolol works

  • Atenolol is an antihypertensive agent.
  • It is a beta-blocker that acts by blocking the Beta adrenergic receptors which stops the effects of adrenaline (a hormone released by the adrenal gland) on the heart leading to decreased heart contractility and a decrease in cardiac output. 
  • This results in lowering of blood pressure and reduced workload on the heart, making it effective in treating conditions like hypertension, angina, and myocardial infarction.

Certified content

Written By

docImg
Amit SharmaClinical Health & Medical Writer| 3 years

B. Pharm

Reviewed By

Amatul Ameen
Amatul Ameen Clinical Health & Medical Writer| 13 years

B. Pharm, MSc.

Expert Advice

Dosage Forms Available

  • Atenolol is available for use via oral (tablet, solution) and intravenous (injection).

Age And Dose Restrictions

  • It is used for adults only and not recommended for children.

Contraindications 

  • Atenolol is contraindicated in patients with sinus bradycardia, heart block greater than first-degree, cardiogenic shock, and overt heart failure.

Medications To Avoid With This Drug 

  • Avoid medications like Reserpine, Rivastigmine, Disopyramide, Amiodarone, Digoxin, Verapamil, Clonidine, Indomethacin and Amifostine.

Overdose And Missed Dose

  • Overdose can cause lethargy, trouble breathing, wheezing, Bradycardia (reduced heart rate), hypotension, bronchospasm and hypoglycemia, which needs to be managed as an emergency in a hospital setting. Therefore, strict adherence to the prescribed dose is essential.
  • If you miss a dose of Atenolol, take it as soon as you remember. But, if the next dose is near, skip the missed dose and resume the regular dosing regime.

Management Of Side Effects

  • Take this medicine with food to reduce gastrointestinal side effects and continue taking it as prescribed. If side effects worsen or persist, consult your doctor for a possible treatment plan adjustment. To avoid falls and injuries, sit down or lie down as soon as you feel dizzy. Move carefully when rising from a sitting or sleeping posture.

Use In Driving And Operating Machinery

  • Atenolol can make you feel dizzy, tired and lightheaded. Do not drive, operate machinery, or do other activities that require mental alertness or coordination until you know how this medication affects you. 

Caution In Other Conditions

  • Caution is advised in elderly patients with a history of heart problems.
  • Caution is advised in patients with slow or irregular heart rates or with a history of heart failure, asthma or other lung diseases, diabetes, hyperthyroidism, pheochromocytoma (a tumour on a gland near the kidneys) and impaired kidney function.

Use In Pregnancy And Lactation

  • Atenolol is not recommended in pregnant women; caution should be exercised in breastfeeding women.

Special Dietary And Lifestyle Recommendation

  • Reduce your sodium (salt) intake, as high salt consumption can counteract its blood pressure-lowering effects.
  • Limit or avoid alcohol consumption, which can exacerbate the side effects of this medication.
  • Maintain an optimum body weight as obesity and being overweight are risk factors for cardiovascular diseases and also reduce the efficacy of ongoing treatment for conditions like hypertension.

Frequently asked questions

Taking Atenolol close to bedtime can help to get through the drowsiness induced by it. Avoid getting upright suddenly from sitting or lying down position. This can help counter postural hypotension associated with its use.

Atenolol typically starts to lower blood pressure and heart rate within 1 to 2 hours after taking the first dose, with maximum effects achieved after several weeks of consistent use. 

Avoid medications like Reserpine, Rivastigmine, Disopyramide, Amiodarone, Digoxin, Verapamil, Clonidine, Indomethacin and Amifostine.

Atenolol is not habit-forming and is generally safe when used as directed.

Yes, Atenolol can cause ankle swelling as a side effect in some individuals. 

Atenolol usually requires a prescription and is not available over the counter.

Terms & Conditions


Available medicines for ATENOLOL
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Ziblok 50 Tablet 14
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Aten 50 Tablet 14
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Pack of 14 Units
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MRP ₹34.14
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Hipres 50 Tablet 14
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Pack of 14 Units
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MRP ₹31.04
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Aten 25 Tablet 14
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₹25.13
MRP ₹30.65
18.00% OFF

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