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IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.
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Buy Prevacid (Lansoprazole) Online

It has never been easier to buy your prescription medications online. Canada Drug Warehouse lets you buy Prevacid quickly and for a fraction of the cost you are used to paying in the US. Order online today or call us 7 days a week.

What is Prevacid?

Prevacid and the generic alternative lansoprazole is a medication used to treat and to prevent stomach and intestinal ulcers, erosive esophagitis and other conditions stemming from excessive stomach acid. Lansoprazole works by decreasing the amount of acid which is produced in the stomach.

Always read the patient information and instructions carefully before using this medication.

  • Prevacid is taken orally before a meal and is typically prescribed to be taken once a day.
  • Your Prevacid dosage is based on your medical condition, response to treatment and weight. Do not change or increase your Prevacid dosage unless advised by a doctor.
  • If you are also taking sucralfate, take Prevacid at least 30 minutes beforehand.
  • Lansoprazole is most effective when it is taken regularly. Try to take this medication at the same time each day.
  • Continue taking Prevacid for the prescribed amount of time, even if you feel better. Speak to your doctor if your condition persists or worsens.


Make sure to tell your doctor and pharmacist:

  • If you have any drug allergies.
  • Which other prescription and non-prescription medications you currently take.
  • Your medical history especially of lupus or liver disease.
  • If you are breast feeding.

Also be aware that:

  • This medication may contain aspartame.
  • Proton pump inhibitors such as lansoprazole may increase your risk of bone fractures, especially when taken for a longer time.
  • Older adults may be more sensitive to the side effects of Prevacid, particularly bone loss or fractures.
  • This medication should only be taken when clearly needed during pregnancy.

Lansoprazole Side Effects

Common Prevacid side effects may include but are not limited to:

  • Nausea, stomach pain, diarrhea or constipation.
  • Headaches.

Contact your doctor if you experience any of the following side effects of lansoprazole:

  • Severe stomach pain.
  • Watery or bloody diarrhea.
  • New or unusual pain in your wrist, back hip or thigh.
  • Seizures.
  • Signs of a kidney problem such as little, no or bloody urination, swelling or rapid weight gain.
  • Signs of low magnesium such as dizziness, fast or irregular heart rate, tremors or jerking muscle movements, feeling jittery, muscle cramps, muscle spasms in your hands or feet, coughing or a choking feeling.
  • New or worsening symptoms of lupus such as joint pain or rashes on your cheeks or arms which worsen in sunlight.
  • Signs of an allergic reaction such as hives, difficulty breathing or a swelling of your face, lips or throat.


Q: How long does it take Prevacid to dissolve?

A: Place Prevacid on your tongue. It should dissolve in less than one minute.

Q: What should I do if I miss a dose of Prevacid?

A: Take your missed dose as soon as you remember. If it is almost time for your next dose then skip the missed dose. Do not take a double dose to make up for a missed dose.

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Linda C

January 9, 2023

I love Canada Drug Warehouse. They are super efficient and I like that they call me when one of my medications is about to expire. They have saved me thousands of dollars. This is a great company!!!!!!

James D

October 14, 2022

My prescription was received in 14 business days from the date of payment. The meds arrived in individual sealed pill packs. This was my first order and very pleased with their prompt and courteous service.

John H

October 1, 2022

Very informed and efficient agent taking order. Delivery when promised. Outstanding service.

Robert C

September 9, 2022

Meds received in a timely manner.


September 8, 2022

This is an absolutely reliable source of prescription meds and I have saved more than $5,000 in one year by ordering from them. Highly recommend.

Donald K

September 7, 2022

I have only good things to say about Canada Drug Warehouse. Please keep up the good work.

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

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Our goal is to bring you the most affordable medication. If you find a lower price advertised by another website or your local pharmacy, we’ll match that price or beat it by 10% of the difference.* Call us at 1-877-204-1506 and a member of our CareTeam will be happy to assist you.

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Some exceptions may apply. To qualify for price matching, competitors must meet our standards for patient safety. Advertised prices must be for medication of the same type, strength, quantity, and form.