Lansoprazole: Side Effects, Uses & Monitoring
1.1 Treatment of Active Duodenal Ulcer Lansoprazole delayed-release capsules are indicated in adults for short-term treatment (for four weeks ) for healing and symptom relief of active duodenal ulcer [see Clinical Studie
- Data source
- FDA labeling via NIH DailyMed (label ce1a4f32…)
- Label version
- current
- Last reviewed
- 2026
Reported adverse reactions
Reactions listed in current FDA labeling, with the highest frequency reported across summarized placebo-controlled trials.
| Adverse reaction (as reported in labeling) | Reported frequency* |
|---|---|
| Abdominal pain | 2.1% |
| Nausea | 1% |
*Highest percentage reported for the active moiety across placebo-controlled trial tables in current FDA labeling. Values reflect trial reporting, not your individual risk.
Labeled uses (from FDA prescribing information)
1.1 Treatment of Active Duodenal Ulcer Lansoprazole delayed-release capsules are indicated in adults for short-term treatment (for four weeks ) for healing and symptom relief of active duodenal ulcer [see Clinical Studies ( 14.1]. 1.2 Eradication of H. pylori to Reduce the Risk of Duodenal Ulcer Recurrence Triple Therapy: Lansoprazole /amoxicillin /clarithromycin Lansoprazole delayed-release capsules in combination with amoxicillin plus clarithromycin as triple therapy is indicated in adults for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or one year history of a duodenal ulcer) to eradicate H. pylori. Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence [see Clinical Studies ( 14.2)]. Please refer to the full prescribing information for amoxicillin and clarithromycin. Dual Therapy: Lansoprazole /amoxicillin Lansoprazole delayed-release capsules in combination with amoxicillin as dual therapy is indicated in adults for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or one-year history of a duodenal ulcer) who are either allergic or intolerant to clarithromycin or in w…
Conditions associated with Lansoprazole in labeling
Frequently Asked Questions
What is Lansoprazole used for?
FDA labeling lists the approved uses shown above under "Labeled uses." This summary is informational; only a qualified prescriber can determine whether a medication is appropriate for you.
What are the most commonly reported side effects of Lansoprazole?
The table above shows adverse reactions and the highest frequencies reported in placebo-controlled trials summarized in current FDA labeling for Lansoprazole. Individual risk varies.
Does Lansoprazole require lab monitoring?
Monitoring needs vary. Ask your healthcare provider whether any lab tests apply while taking Lansoprazole.
Where does this information come from?
All clinical facts on this page were extracted from the current FDA-registered product labeling for this ingredient, published by manufacturers through NIH DailyMed. See the source link below.
Medical disclaimer: Educational content extracted from public FDA labeling. Not medical advice. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.