How does labetalol work?
Labetalol blocks beta and alpha receptors in the heart and blood vessels, reducing heart rate, relaxing blood vessels, and improving circulation.
What is labetalol used to treat?
Labetalol is commonly prescribed for:
- High blood pressure (hypertension), including in pregnancy
- Managing severe high blood pressure (hypertensive crisis)
- Reducing the risk of complications in people with high blood pressure and heart disease
Who can take labetalol?
Labetalol is suitable for most adults, including pregnant women, as prescribed by a doctor.
Who might not be able to take labetalol?
Labetalol may not be suitable if you:
- Have asthma or severe breathing problems
- Have a slow heart rate (bradycardia) or heart block
- Have severe heart failure
- Have liver disease
Can I take labetalol if I’m pregnant or breastfeeding?
Labetalol is commonly prescribed during pregnancy to manage high blood pressure. It is also considered safe during breastfeeding, but always consult your doctor for guidance.
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 labetalol?
Labetalol is highly effective at lowering blood pressure and preventing complications when taken consistently.
What should I do if I take too much?
Taking too much labetalol 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 labetalol is usually taken?
- For high blood pressure: 100mg to 400mg twice daily, as prescribed
- For severe hypertension: Higher doses may be required under medical supervision
Your doctor will determine the correct dose based on your condition.
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What are the side effects of labetalol?
Common side effects include:
- Dizziness or lightheadedness
- Fatigue or drowsiness
- Nausea
- Cold hands and feet
Serious side effects, such as wheezing, severe dizziness, or irregular heartbeat, require urgent medical attention.
How should I take labetalol?
Labetalol is taken as tablets, usually once or twice daily, with food to reduce the risk of side effects.
When should labetalol be taken?
Labetalol should be taken at the same time each day, as prescribed by your doctor.
What are the brand names for labetalol?
Labetalol is available as a generic medicine, but some branded versions include:
- Trandate
- Normodyne (outside the UK)
Final thoughts
Labetalol is an effective medication for high blood pressure and heart conditions, but it should be taken exactly as prescribed. Regular monitoring may be needed to check blood pressure and heart function. If side effects occur, speak to your doctor or pharmacist.
