Key facts about Labetalol
What dosages is Labetalol available in?
Labetalol is available as a 100 mg, 200 mg, and 300 mg oral tablet.
What is Labetalol used for?
Labetalol is a beta blocker and is used to treat high blood pressure.
How does Labetalol work?
Labetalol is an alpha and beta blocker medication. It lowers blood pressure by relaxing blood vessels (by blocking alpha receptors) and slowing heart rate (by blocking beta receptors).
How do I take Labetalol?
Labetalol is typically 200 mg to 400 mg twice a day.
Is it safe for me to take Labetalol?
Labetalol is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have:
- Bronchial asthma
- Overt cardiac failure
- Greater-than-first-degree heart block
- Cardiogenic shock
- Severe bradycardia
Labetalol Common Side Effects
- Common side effects of Labetalol:
- Dizziness
- Queasy feeling
- Tiredness
Labetalol Serious Side Effects
Serious side effects are rare with Labetalol. Contact your healthcare provider immediately if you experience any of the following.
- Heart failure
- Trouble breathing
Labetalol can hide the signs and symptoms of low blood sugar in people with diabetes - Drop in heart rate or other heart rhythm problems
- Worsening chest pain and even a heart attack could occur if you suddenly stop taking Labetalol
Effects of other drugs, drug classes and over-the-counter products on Labetalol
The following medications may interact with Labetalol:
- Beta blockers antagonize the bronchodilator effect of beta-receptor agonists
- Increase hypotension may occur with halothane anesthesia
- Nitroglycerin may result in additional hypotensive effects
Who makes Labetalol?
Various FDA-approved generic manufacturers
Is Labetalol safe in pregnancy?
Labetalol use in pregnant women, based on published interventional and observational studies, has not identified a drug-associated risk for major birth defects, miscarriage, or adverse maternal or fetal outcomes. However, you should talk to your healthcare provider before taking this medication if you are pregnant.













