We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Are the Uses of IV Labetalol?

By B. Chisholm
Updated May 17, 2024
Our promise to you
WiseGEEK is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGEEK, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

IV labetalol is a beta-blocker used in the treatment of serious clinical conditions such as hypertensive crisis. It may also be used to produce controlled hypotension during surgical procedures which require low blood pressure. It is used almost exclusively in specialist situations, in hospital, as it is given intravenously, or into the veins, by injection. IV labetalol may be known by different trade names in different countries, according to manufacturer and, in most countries is available by prescription only.

There are a number of different drugs belonging to the class of beta-blockers. They all work mainly by blocking the beta receptors in the body although some of them, like IV labetalol, have an effect on alpha receptors too. By blocking these receptors, the action of adrenaline and noradrenalin — the chemicals responsible for the "fight or flight" reaction — is reduced. Exerting this action on the receptors of the heart causes it to slow down which reduces the pressure with which the heart pumps, lowering blood pressure and work load on the heart.

Hypertensive crisis occurs when the blood pressure is severely increased and may be as a result of heart attack, eclampsia during pregnancy or forgetting to take antihypertensives, amongst other reasons. It should be treated as a medical emergency and immediate medical attention should be sought as stroke may result. Depending on the cause of the hypertensive crisis, a number of procedures will be followed to get the blood pressure down to a safe level.

When using IV labetalol to treat a hypertensive crisis, it is given intravenously, either at intermittent doses or as an infusion over a longer period. The dose used will depend on the severity of the hypertension and the weight of the patient. The drug is administered to the patient in a lying down position and light-headedness must be expected when the patient first stands up after administration. Usually the blood pressure will be monitored throughout treatment and dosage adjusted accordingly.

While IV labetalol is used in emergency situations on an acute basis, an oral preparation of labetalol is also available in most countries worldwide and may be used in the long-term treatment of hypertension. Both the IV and oral preparations may interact with other medications, be contraindicated in patients with some underlying clinical conditions and cause unwanted side effects in some patients. Any medications, including homeopathic, complementary and over-the-counter medications or underlying clinical conditions, such as asthma, should be discussed with the prescribing doctor.

WiseGEEK is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Discussion Comments

WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.