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 Common Lansoprazole Side Effects?

By Misty Amber Brighton
Updated Jan 27, 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.

Lansoprazole is a prescription drug used to treat a number of stomach disorders. Some common lansoprazole side effects include stomach pain, constipation, diarrhea, nausea, and headache. Severe side effects include tightness in the chest, difficulty breathing, swelling of the lips and tongue, a hive-like rash, or changes in vision. In rare instances, patients may experience dizziness, fainting, numbness in the arm, or ringing in the ears.

Some of the conditions lansoprazole may be used to treat include gastroesophageal reflux disease (GERD) and ulcers. This is because it is a proton pump inhibitor, which means it decreases the amount of acid produced in the stomach. Despite providing relief for gastric issues, the most common lansoprazole side effects deal with the stomach and include stomach pain, nausea, diarrhea, and constipation. In more severe instances, people may vomit up matter that looks like coffee grounds.

Aside from stomach issues, lansoprazole side effects often include breathing problems. This can mean shortness of breath, or a patient may have difficulty catching his breath altogether. In some instances, this breathing issues are accompanied by tightness in the chest area. Many people develop hives or a rash, accompanied by tongue or lip swelling. These symptoms can be potentially life threatening, so those who experience them should seek medical attention promptly.

There are also other rare side effects patients have reported. Dizzy spells may be experienced, sometimes accompanied by fainting. Patients may also feel numbness in one arm or leg or along one side of the body prior to these episodes. A ringing noise in the ears is often experienced during this time as well. People who notice these conditions should seek the advice of a physician in order to rule out more serious problems, such as an impending stroke.

This medication comes in tablet, capsule, or powder form. Those who take capsules may experience different lansoprazole side effects than patients who take tablets or powder. Some of these include dark urine in decreased amounts, chills, confusion, muscle pain, or weight gain. They might also notice they bruise easier than before they began taking lansoprazole.

Before taking lansoprazole, patients should advise their physician on what other medications or nutritional supplements they are currently taking. They should also let him know if they have any allergies, especially to other medications. Doing so can help him determine whether this is the right treatment option and may allow him to give advice on how to reduce the possibility of side effects from taking this drug.

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

By anon997135 — On Nov 19, 2016

I've been taking lasoprazole since I was prescribed them at the age of 22. I'm now 33 and I have developed breathing trouble myself. I've not had any tests done yet but my anxiety is through the roof daily and I've always put it down to stomach related issues. I don't believe anyone should be on lansoprazole as long as I've been it says your only supposed to be on it for a few months! And I'm taking the maximum dose.

They changed me to omeprazole which completely stopped my stomach problems but landed me in E.R almost because of the level of anxiety I experienced. I've also done ranitidine at the maximum dosage also, and that's not working as expected either. It's so bad with the medication that the doctors have booked me for an endoscopy asap. I had an ultrasound done and nothing was revealed, so the camera is the only solution left, well apart from drinking barium. That is, not a nice taste but if it reveals something, all the better.

As for lansoprazole itself, I've read now on many forums that it's not just me experiencing the shortness of breath; it is a very large percentage of us who get it while on this drug, so I will be stopping it and seeing how it goes from here on out.

WiseGEEK, in your inbox

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

WiseGEEK, in your inbox

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