Is senna safe during pregnancy?

What does the evidence say about senna during pregnancy?

1. Senna is listed among the stimulant laxatives reviewed, and the available studies show that over-the-counter laxatives at recommended doses are not expected to raise the chance of birth defects. 1
2. In pregnancy trials, stimulant laxatives improved constipation more than bulk-forming agents (risk ratio 1.59 across 140 women), so they do work. 2
3. That extra effect came with more than twice the abdominal discomfort (risk ratio 2.33) and a much higher rate of diarrhea (risk ratio 4.50) compared with bulk-forming agents. 2
4. Obstetric reviews place fiber-containing bulking agents first for pregnancy constipation, with polyethylene glycol as the osmotic step, which is why stimulants sit further down the list. 3
5. For the postpartum period, usual senna doses are considered acceptable while breastfeeding, and studies measuring breastmilk found sennosides undetectable in all samples. 4

Is senna safe in each trimester?

• First trimester. Most first-trimester constipation is handled with fiber, fluid, and movement before any stimulant enters the picture. If nothing is moving, bring it up rather than escalating on your own.
• Second trimester. Constipation is at its most common now. Senna is generally positioned after bulk-forming and osmotic options, and the cramping it causes is the main reason for that ordering.
• Third trimester. Late-pregnancy constipation can be stubborn. Abdominal cramping from a stimulant is uncomfortable and hard to tell apart from other sensations at this stage, which is another reason to have your provider direct the choice.