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Brand names with manufacturer: 



Prescription drug

What is it: 

Atenolol is a beta-adrenergic blocking agent, which effectively manage problems associated with the heart and blood circulation



Atenolol is prescribed to treat patients with high blood pressure (hypertension)


To get rid of chest pain which could be consequence of coronary artery disease, to prevent migraine headaches, and treat heart failure, arrhythmias, and alcohol withdrawal.

What should I know before taking this drug: 

You should know the dosage, side effects and precautions before taking the drug. Do NOT stop taking the drug without asking your doctor, it can make your condition worse.

How to take it: 

Orally with a glass of water with meals or in empty stomach

Adverse reactions/side effects

Common side effects include nausea, weakness, dizziness, lightheadedness, tiredness, diarrhoea and vomiting. Tell your doctor if these side effects are persistent.

Some unusual side effects could be shortness of breath, chest pain, swelling in hands and feet, cold sensitivity, fainting, tingling, allergies (rashes on skin) and excessive weight gain.  Inform your doctor immediately.



Doxazosin should not be used in children because the safety and effectiveness of the drug in children have not been confirmed.

Old people:

Pregnant women:

Pregnant woman are not given atenolol as it can harm your unborn baby. Let your doctor know if you are planning for pregnancy or if doctor if you become pregnant while taking the medicine.

Lactating women: 

Taking atenolol while breastfeeding is not recommended as it gets excreted in breast milk, which can harm the baby. Tell your doctor if you are nursing.

What should I do if

I miss dose(s)

Take the missed dose as soon as possible. Skip the missed dose if the next dose is less than 8 hours away. Do not take extra dose.

I take over dose 

Call your doctor immediately

Dosage form:

Tablet and injection (only at hospital) only for acute myocardial infarction


A low dose is given and slowly may be increased until the maximum effect is reached. The dose for treating hypertension and angina is 50-100 mg once daily.


Should be stored at room temperature i.e. 20°to 25°C (68° to 77°F) and in a cool and dry place, out of reach of children.

Additional information if any

Could affect your ability to drive, make you dizzy. So be careful
Do not give your medicine to anyone
Your doctor would ask you to stop taking alcohol
A low sodium diet may be recommended
Always consult your doctor if you have any doubts or sense any abnormality

Written by: team

Date last updated: december 26, 2014