Safe Antacids and Proton Pump Inhibitors for First Trimester Pregnancy

Recommended Treatment Algorithm

• Calcium-based antacids have minimal systemic absorption, making them particularly safe during the critical first trimester when teratogenic risk is highest, as recommended by the European Heart Journal 1, 2

Important Safety Considerations

• The first trimester represents the period of highest risk for medication-induced teratogenicity, and ideally all medications should be avoided when possible, according to Praxis Medical Insights 2
• Ensure adequate fluid intake when using any antacid to prevent complications, as advised by Praxis Medical Insights 2
• Antiemetics that are safe in the first trimester include ondansetron, metoclopramide, and meclozine, but corticosteroids should be omitted, as reported in the Annals of Oncology 3
• Avoid stimulant laxatives during pregnancy as safety data are conflicting, as noted by Praxis Medical Insights 2