Constipation in Pregnancy

Status

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

Reason

Common options in pregnancy, but choice and dose should be reviewed by an OB/GYN or prescriber.

Drug Information

Brand Name
Various
Generic Name
Constipation treatments (e.g., docusate, lactulose, senna, polyethylene glycol)
Drug Class
Laxatives / stool softeners
FDA Category
N/A (PLLR narrative label)
Rx Status
OTC

Safe Amount

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

Effects

Pregnancy
Pregnancy itself often worsens constipation; treatment choice depends on symptoms and trimester.
Mother
Can cause diarrhea, cramps, dehydration, or electrolyte problems if misused.
Baby
Most constipation medicines have limited pregnancy data; official guidance generally favors options with low absorption and provider review.

Trimester Notes

1st Trimester
Prefer non-medicine steps first when possible. Ask your provider before starting any laxative in early pregnancy.
2nd Trimester
If diet and fluids do not help, your provider may recommend a pregnancy-appropriate laxative for short-term use.
3rd Trimester
Constipation is common later in pregnancy. Some laxatives may be used, but your provider should guide the choice and duration.

Conditions & Warnings

  • Consult OB/GYN or prescriber
  • Pregnancy constipation
  • OTC dosing limits may apply
  • Do not use long term without medical advice

Alternatives

  • More fiber in food
  • More fluids
  • Gentle exercise
  • Provider-recommended bulk-forming laxative or lactulose

References

  • NHS
    https://www.nhs.uk/medicines/docusate/pregnancy-breastfeeding-and-fertility-while-taking-or-using-docusate/
  • NHS
    https://www.nhs.uk/medicines/senna/pregnancy-breastfeeding-and-fertility-while-taking-senna/
  • NHS
    https://www.nhs.uk/medicines/lactulose/pregnancy-breastfeeding-and-fertility-while-taking-lactulose/
  • ACOG
    https://www.acog.org/womens-health/experts-and-stories/ask-acog/what-can-help-with-constipation-during-pregnancy
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