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Related terms
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    Related terms
    • U.S. Brand Names: Prevacid®;Prevacid® 24 HR [OTC];Prevacid® SoluTabT
    • Canadian Brand Names: Apo-Lansoprazole®;Mylan-Lansoprazole;Novo-Lansoprazole;Prevacid®;Prevacid® FasTab
    • Mexican Brand Names: Imidex;Lanodizol;Ogastro;Olan;Palatrin;Prilosan;Safemar;Sorifran;Uldapril;Ulpax
    • Pharmacologic Category: Proton Pump Inhibitor;Substituted Benzimidazole

    • It is used to stop or treat GI (gastrointestinal) ulcers caused by infection.
    • It is used to stop or treat NSAID-associated gastric ulcers in patients with a history of ulcers.
    • It is used to treat gastroesophageal reflux disease.
    • It is used to treat heartburn.
    • It is used to treat syndromes caused by huge amounts of stomach acid.
    • It is used to stop or treat ulcers of the swallowing tube (esophagus).
    • Lansoprazole helps avoid harm to the GI (gastrointestinal) tract caused by stomach acid or infection.


    How to take

    • Take 30 minutes before the first meal of the day.
    • Swallow capsule whole. Do not chew, break, or crush.
    • You may sprinkle contents of capsule on soft food or liquid. Do not chew.
    • For patients who have feeding tubes, open capsule and mix with 3 tablespoonfuls of apple juice. Give through feeding tube. Flush the feeding tube before and after this drug is given.
    • Oral-disintegrating tablet: Place on tongue and let dissolve. Water is not needed. Do not swallow whole. Do not chew, break, or crush.

    Missed Dose

    • Take a missed dose as soon as you think about it.
    • If it is close to time for the next dose, skip the missed dose and return to your normal time.
    • Do not take two doses or extra doses.
    • Do not change dose or stop drug. Talk with doctor.


    • Store at room temperature.
    • Protect from water. Do not store in a bathroom or kitchen.



    • Unsafe reactions may happen. This drug cannot be taken while you are taking certain other drugs. Check all the drugs you are taking with your doctor.


    • If you have an allergy to lansoprazole or any other part of this drug.
    • Tell doctor if you are allergic to any drugs. Make sure to tell about the allergy and what signs you had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs involved.


    • If you need Prevacid® 24 HR for more than 14 days in a row, talk with doctor.
    • If you have liver disease, talk with doctor.
    • If you have PKU, talk with doctor. Some products do contain phenylalanine.
    • Use care if you have risk factors for soft, brittle bones called osteoporosis (alcohol use, cigarette smoking, other family members with brittle bones, taking drugs to treat seizures, taking steroids).
    • Check drugs with doctor. This drug may not mix well with other drugs.
    • Avoid alcohol (includes wine, beer, and liquor).
    • Tell doctor if you are pregnant or plan on getting pregnant.
    • Tell doctor if you are breast-feeding.

    Side Effects

    • Dizziness.
    • Headache.
    • Belly pain.
    • Constipation.
    • Loose stools.
    • Hip, spine, or wrist fractures may rarely happen.


    • Change in health problem being treated. Is it better, worse, or about the same?
    • Follow up with doctor.

    Contact a healthcare provider

    • If you suspect an overdose, call your local poison control center or ER right away.
    • Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat.
    • Very bad dizziness or passing out.
    • Fast heartbeat.
    • Very bad belly pain.
    • Very bad loose stools.
    • Very bad bone pain.
    • Very bad muscle pain or weakness.
    • Unusual bruising or bleeding.
    • Seizures.
    • Any rash.
    • Health problem is not better or you are feeling worse.

    General Statements

    • If you have a very bad allergy, wear allergy ID at all times.
    • Do not share your drugs with others and do not take anyone else's drugs.
    • Keep all drugs out of the reach of children and pets.
    • Most drugs can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.
    • In Canada return any unused drugs back to the pharmacy. Also, visit for more facts about the right way to get rid of unused drugs.
    • Keep a list of all your drugs (prescription, natural products, supplements, vitamins, OTC) with you. Give this list to your doctor.
    • Call your doctor for health help about side effects. You may also call the FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.
    • Talk with doctor before starting any new drug, including OTC, natural products, or vitamins.

    Author information
    • Copyright © 1978-2010 Lexi-Comp Inc. All rights reserved.

    Copyright © 2011 Natural Standard (

    The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.

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