Is Lansoprazole Safe in Pregnancy

Status

caution Last reviewed: 2026-05-16 · Confidence: moderate

Reason

Official labeling says use in pregnancy only if clearly needed; data do not show a clear harm signal, but evidence is limited.

Drug Information

Brand Name
Prevacid
Generic Name
lansoprazole
Drug Class
proton pump inhibitor (PPI)
FDA Category
B
Rx Status
OTC

Safe Amount

Dosage must be determined by your provider based on individual risk/benefit.

Effects

Pregnancy
Use only if needed. Pregnancy dosing should be reviewed by your provider.
Mother
May help reflux symptoms. Side effects can still occur, such as headache or diarrhea.
Baby
Available official labeling does not show an association with major birth defects; human data are limited.

Trimester Notes

1st Trimester
Use only if clearly needed in the first trimester. Review with your provider.
2nd Trimester
Use only if clearly needed. Review ongoing need with your provider.
3rd Trimester
No special trimester-specific warning is listed in the official label, but use only if clearly needed.

Conditions & Warnings

  • Consult OB/GYN or prescriber
  • OTC: pregnancy dosing limits may apply
  • Do not start, stop, or continue without provider review if you are pregnant

Alternatives

  • Antacids with pregnancy-specific guidance from your provider
  • Lifestyle changes for reflux, such as smaller meals and avoiding trigger foods
  • Ask your OB/GYN about other acid-reducing medicines if needed

References

← Back to Medication