Is Omeprazole Safe During Pregnancy

Status

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

Reason

Pregnancy data are limited but reassuring; use only if needed and review with your OB/GYN or prescriber.

Drug Information

Brand Name
Prilosec
Generic Name
omeprazole
Drug Class
Proton pump inhibitor (PPI)
FDA Category
C
Rx Status
OTC

Safe Amount

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

Effects

Pregnancy
Official labeling says use during pregnancy only if clearly needed. No official pregnancy dosing is established.
Mother
May help relieve heartburn/GERD symptoms. Possible side effects include headache, nausea, and diarrhea.
Baby
May cross the placenta; limited human data have not shown a clear increase in birth defects.

Trimester Notes

1st Trimester
First-trimester exposure data are limited but have not shown a clear increase in congenital anomalies in labeling.
2nd Trimester
No specific trimester dosing guidance in official labeling; use only if clearly needed and with provider review.
3rd Trimester
No specific trimester dosing guidance in official labeling; use only if clearly needed and with provider review.

Conditions & Warnings

  • Consult OB/GYN or prescriber
  • OTC: pregnancy dosing limits may apply
  • Do not stop or continue prescription treatment without provider review

Alternatives

  • Lifestyle changes for reflux (smaller meals, avoid trigger foods, do not lie down after meals)
  • Ask your provider about antacids or other pregnancy-appropriate options

References

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