Lansoprazole side effects - from FDA reports

In this review, we analyze Lansoprazole side effects by the time on the drug, gender and age of the people who have side effects while taking Lansoprazole. The review is based on 64,662 people who have side effects while taking the drug from FDA, and is updated regularly.

How to use this study: bring a copy to your health teams to ensure drug risks and benefits are fully discussed and understood.

Who is eHealthMe: we are a data analysis company who specializes in health care industry. Our original studies have been referenced on 500+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and EANO. On eHealthMe, you can research drugs and monitor them (see testimonials).


Lansoprazole has active ingredients of lansoprazole. It is often used in gastroesophageal reflux disease. (latest outcomes from Lansoprazole 65,803 users)

On Oct, 05, 2018

64,662 people who take Lansoprazole are studied.

Number of reports submitted per year:

Lansoprazole side effects.

Most common side effects over time *:

< 1 month:
  • Vomiting
  • Rash
  • Urticaria (rash of round, red welts on the skin that itch intensely)
  • White blood cell count decreased
  • White blood cell count increased
1 - 6 months:
  • Sepsis (a severe blood infection that can lead to organ failure and death)
  • Malaise (a feeling of general discomfort or uneasiness)
  • Thrombocytopenia (decrease of platelets in blood)
  • Toxic epidermal necrolysis (a rare, life-threatening skin condition that is usually caused by a reaction to drugs causes wide spread skin destruction)
  • Nausea (feeling of having an urge to vomit)
6 - 12 months:
  • Rash
  • Vomiting
  • Interstitial lung disease
  • Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
  • Hepatitis fulminant (life-threatening condition defined by significantly impaired liver function)

Click here to view more results or personalize the results to your gender and age

Most common side effects by gender *:

  • Vomiting
  • Weight decreased
  • Nausea (feeling of having an urge to vomit)
  • Rash
  • Pyrexia (fever)
  • Vomiting
  • Pyrexia (fever)
  • Syncope (loss of consciousness with an inability to maintain postural tone)
  • Rhabdomyolysis (a condition in which damaged skeletal muscle tissue breaks down)
  • Death

Click here to view more results or personalize the results to your gender and age

Most common side effects by age *:

  • Ventricular septal defect (a hole in the heart, is a common heart defect that's present at birth (congenital))
  • Pulmonary hypertension (increase in blood pressure in the lung artery)
  • Vomiting
  • Atrial septal defect (an abnormal opening between the left and right atria of the heart)
  • Premature baby
  • Vomiting
  • Urticaria (rash of round, red welts on the skin that itch intensely)
  • Venoocclusive liver disease (small veins in the liver are obstructed)
  • Pyrexia (fever)
  • Extrapyramidal disorder (involuntary muscle spasms in the face and neck)
  • Vomiting
  • Drug rash with eosinophilia and systemic symptoms (adverse drug reactions with rash)
  • Crohn's disease (condition that causes inflammation of the gastrointestinal tract)
  • Squamous cell carcinoma of skin (a cancer of a kind of epithelial cell, the squamous cell. these cells are the main part of the epidermis of the skin)
  • Pyrexia (fever)

Click here to view more results or personalize the results to your gender and age

* Approximation only. Some reports may have incomplete information.

FDA reports used in this study

You are not alone:

Related studies

All Lansoprazole side effects from A to Z

a b c d e f g h i j k l m n o p q r s t u v w x y z

On eHealthMe, Lansoprazole (lansoprazole) is often used to treat gastroesophageal reflux disease. Find out below the conditions the drugs are used for and how effective they are.

What is the drug used for and how effecitve is it:

Recent updates

General studies

NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.