Is Ampicillin Safe During Pregnancy?

What is the safest way to think about this?

UKTIS says penicillins are commonly used in pregnancy when indicated, and Mayo Clinic lists penicillins including ampicillin among antibiotics thought of as safe to take while pregnant. DailyMed ampicillin labeling reports animal data without evidence of harm but notes that controlled human pregnancy studies are lacking, so use should be based on clinical need. ACOG UTI guidance supports appropriate antibiotic treatment for pregnancy UTIs.

Checking a different medicine? The Pregnancy Medication Safety Hub collects all 154 SafeMama medicine guides, including the active-ingredient and dose questions worth raising with a pharmacist.

What is generally okay?

• Take ampicillin exactly as prescribed and ask whether follow-up testing is needed.
• Tell your clinician about penicillin allergy, cephalosporin allergy, kidney disease, severe antibiotic diarrhea, rash, other antibiotics and breastfeeding plans.
• Ask what symptoms should improve and what to do if culture results recommend a different antibiotic.

What should you avoid or double-check?

• Avoid leftover ampicillin or antibiotics borrowed from someone else.
• Avoid using ampicillin for viral colds, flu, COVID symptoms or undiagnosed urinary, dental, vaginal or throat symptoms.
• Avoid stopping early or changing the schedule without prescriber or pharmacist advice.

How SafeMama helps

SafeMama can flag ampicillin, penicillin antibiotics, amoxicillin, Augmentin, GBS terms, UTI labels, allergy warnings, diarrhea cautions and culture follow-up questions.

Open the SafeMama app, scan the barcode or search the ingredient, then use the result as a starting point for a conversation with your healthcare provider.

Sources

• UKTIS penicillins in pregnancy
• DailyMed ampicillin label
• ACOG urinary tract infections in pregnancy
• Mayo Clinic antibiotics and pregnancy overview