How does atenolol work?
Atenolol blocks beta receptors in the heart, slowing the heart rate and reducing blood pressure, which helps improve circulation and reduce strain on the heart.
What is atenolol used to treat?
Atenolol is commonly prescribed for:
- High blood pressure (hypertension)
- Angina (chest pain caused by reduced blood flow to the heart)
- Preventing heart attacks and reducing the risk of further heart problems
- Managing irregular heartbeats (arrhythmias)
Who can take atenolol?
Atenolol is suitable for most adults with heart-related conditions, as prescribed by a doctor.
Who might not be able to take atenolol?
Atenolol may not be suitable if you:
- Have severe asthma or chronic obstructive pulmonary disease (COPD)
- Have low blood pressure (hypotension)
- Have a slow heart rate (bradycardia) or heart block
- Have circulatory problems (such as Raynaud’s disease)
Can I take atenolol if I’m pregnant or breastfeeding?
Atenolol isn’t usually recommended during pregnancy or breastfeeding, as it may affect the baby. Speak to your doctor about safer alternatives.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s close to your next dose, skip the missed one—do not take two doses at once.
How effective is atenolol?
Atenolol is highly effective at lowering blood pressure, reducing angina symptoms, and preventing heart-related complications when taken consistently.
What should I do if I take too much?
Taking too much atenolol can cause dangerously low blood pressure, slow heart rate, dizziness, or fainting. If you think you’ve taken too much, seek emergency medical help immediately.
What dose of atenolol is usually taken?
- For high blood pressure: 25mg to 50mg once daily, up to 100mg if needed
- For angina: 50mg to 100mg once daily
- For arrhythmias: 50mg to 100mg daily, as prescribed
Your doctor will determine the correct dose based on your condition.
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What are the side effects of atenolol?
Common side effects include:
- Dizziness or lightheadedness
- Fatigue or drowsiness
- Cold hands and feet
- Nausea
Serious side effects, such as worsening heart failure, difficulty breathing, or severe dizziness, require urgent medical attention.
How should I take atenolol?
Atenolol is taken as tablets, usually once daily, swallowed whole with water.
When should atenolol be taken?
Atenolol should be taken at the same time each day, with or without food.
What are the brand names for atenolol?
Atenolol is available as a generic medicine, but some branded versions include:
- Tenormin
- Apo-Atenolol
Final thoughts
Atenolol is an effective medication for high blood pressure, angina, and heart-related conditions, but it should be taken exactly as prescribed. If you experience side effects, speak to your doctor or pharmacist.
