Botanical

Senna

Also known as: Senna alexandrina, Sennosides, Cassia angustifolia

Evidence

Stimulant laxative for occasional constipation, works by stimulating intestinal contractions.

Primary uses

Occasional constipation
Bowel prep
Short-term use

How it works

Stimulates intestinal contractions
Increases fluid secretion
Works in 6-12 hours
Not for regular use

Dosage

Typical range: 15-30mg sennosides or 1 cup tea at bedtime
Timing: Bedtime for morning effect
With food: Either way
Duration: Occasional use only (max 1-2 weeks)
Special populations: Occasional constipation

Forms

Tea
Tablets
Liquid

Safety

Common side effects

Cramping
Diarrhea
Electrolyte loss

Contraindications

Chronic constipation (address cause)
IBD
Bowel obstruction
Pregnancy

Evidence notes

Well-established stimulant laxative

Grade A: Multiple well-designed human trials support the main claims.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.