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Atenolol

Antihypertensive

Uses of Atenolol

Atenolol is a cardiovascular medicine used to treat high blood pressure, angina, and heart rhythm irregularities.

This salt is commonly used for:

  • Hypertension (high blood pressure): Lowers elevated blood pressure, reducing the risk of cardiovascular events like strokes and heart attacks.
  • Angina pectoris: Helps prevent chest pain caused by reduced blood flow and oxygen to the heart muscle.
  • Post-heart attack recovery: Improves survival outcomes and protects heart tissue following a heart attack (myocardial infarction).
  • Cardiac dysrhythmias: Helps regulate irregular heartbeats and maintain a stable heart rate.

Side effects of Atenolol

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

How Atenolol works

  • Atenolol belongs to a class of medicines called cardioselective beta-blockers.
  • It works by blocking beta-1 receptors in the heart, preventing adrenaline and noradrenaline from overstimulating cardiac tissue.
  • This slows down heart rate, reduces heart muscle contraction strength, and lowers overall cardiac workload, which effectively reduces blood pressure and eases chest pain.

Certified content

Written By

docImg
Dr. Sachin SinghMedical Team Lead & Reviewer| 7 years

MBBS

Reviewed By

Dr. Mandeep Chadha
Dr. Mandeep ChadhaLead Medical Content Reviewer| 12 years

MBBS, DNB (OBGY)

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


List of medicines for Atenolol

Aten 50 Tablet 14
Aten 50 Tablet 14
Zydus Cadila
Pack of 14 Units
₹30.98
MRP ₹38.72
20% OFF
Hipres 50 Tablet 14
Hipres 50 Tablet 14
Cipla Ltd.
Pack of 14 Units
₹14.55
MRP ₹29.1
50% OFF
Tenormin 50 Tablet 14
Tenormin 50 Tablet 14
Abbott Healthcare Pvt. Ltd
Pack of 14 Units
₹30.83
MRP ₹38.54
20% OFF
Ziblok 25 Tablet 14
Ziblok 25 Tablet 14
Fdc Ltd.
Pack of 14 Units
₹11.8
MRP ₹13.41
12% OFF
Ziblok 50 Tablet 14
Ziblok 50 Tablet 14
Fdc Ltd.
Pack of 14 Units
₹9.46
MRP ₹11.54
18.02% OFF
Hipres 25 Tablet 14
Hipres 25 Tablet 14
Cipla Ltd.
Pack of 14 Units
₹16.56
MRP ₹36.79
54.99% OFF
Tenolol 50 Tablet 14
Tenolol 50 Tablet 14
Ipca Laboratories Pvt Ltd.
Pack of 14 Units
₹31.08
MRP ₹37
16% OFF
Aten 25 Tablet 14
Aten 25 Tablet 14
Zydus Healthcare Limited
Pack of 14 Units
₹27.81
MRP ₹34.76
20% OFF

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