Active Ingredient

Labetalol

Labetalol is a medication commonly used to manage high blood pressure. It belongs to a group of drugs known as beta-blockers, which help to lower blood pressure by affecting the heart and blood circulation.

This medication is often prescribed to adults who need help controlling their blood pressure, especially in certain health conditions.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Labetalol Brands

Trandate

Strengths 50 mg, 100mg, 200 mg

Labetalol Uses

Labetalol is primarily used to treat high blood pressure and related conditions. It helps in managing symptoms and preventing complications.

Hypertension (high blood pressure)
Hypertensive emergencies
Chronic stable angina
Heart failure management
Blood pressure control during surgery

How Labetalol Works

Labetalol works by blocking specific receptors in the body, known as beta-adrenergic receptors. This action helps to slow down the heart rate and reduce the force of the heart’s contractions.

By relaxing the blood vessels, labetalol helps to lower blood pressure, making it easier for the heart to pump blood throughout the body.

This dual action on heart rate and blood vessels makes it effective in managing high blood pressure.

Common side effects of Labetalol

Not everyone experiences side effects from labetalol, and many of them are mild and temporary. However, it’s important to be aware of common side effects.

Dizziness
Fatigue
Nausea
Stomach upset
Headache
Swelling in the legs
Shortness of breath

If you experience serious or persistent symptoms, it’s important to contact your doctor.

Monitor your blood pressure regularly while taking labetalol.
Avoid consuming large amounts of alcohol, as it can increase certain side effects.
Inform your doctor about any other medications you are taking to avoid interactions.
Do not stop taking labetalol suddenly without consulting your doctor, as it may worsen your condition.
If you experience symptoms like a very slow heart rate or severe dizziness, seek medical attention promptly.

Always consult your healthcare provider for personalized advice and guidance.

Frequently Asked Questions

What is labetalol used for?

Labetalol is used to treat high blood pressure and manage conditions related to hypertension.

How does labetalol work?

Labetalol works by blocking beta-adrenergic receptors, which helps to lower blood pressure and reduce heart rate.

Can I drink alcohol while taking labetalol?

It’s best to limit alcohol consumption, as it can increase the risk of side effects like dizziness.

Are there any foods I should avoid while taking labetalol?

No specific foods need to be avoided, but maintaining a healthy diet can support your treatment.

What should I do if I miss a dose of labetalol?

If you miss a dose, take it as soon as you remember, unless it’s almost time for your next dose. Do not double up doses.