Sanna Leaf for Detoxification and Digestive Health

Senna Leaf (Fan Xie Ye, Folium Sennae)

Overview:
Senna Leaf, known as Fan Xie Ye in Traditional Chinese Medicine (TCM), is the dried leaf of Cassia angustifolia or Cassia acutifolia, commonly referred to as senna. It is a well-known herbal laxative used to promote bowel movements, clear heat, and relieve constipation. In TCM, it is considered a purgative that acts on the large intestine to eliminate heat and stagnation.

Botanical Characteristics:
Senna is a small shrub native to regions of Africa and South Asia. The leaves are harvested in summer and autumn, then dried and used either whole or crushed. They contain distinctive compounds called anthraquinone glycosides (notably sennosides), which are responsible for its laxative action.

Traditional Uses in TCM:

• Relieves constipation and promotes bowel movement:
  Especially effective in cases of heat-induced constipation or dry stool.

• Clears heat and drains fire:
  Used in some formulas to help reduce internal excess heat, although its primary action is purgative.

• Reduces bloating and abdominal fullness:
  Helps with symptoms caused by food accumulation or sluggish digestion.

Pharmacological Properties:
Senna Leaf is rich in sennosides A and B, compounds that stimulate peristalsis of the colon. Modern studies confirm its laxative, anti-inflammatory, and antimicrobial properties. It acts within 6–12 hours of ingestion and is commonly used in both TCM and Western herbal medicine for short-term relief of constipation.

Preparation and Dosage:
Senna Leaf is typically brewed into a herbal tea or decoction, often combined with other herbs to moderate its strong effects.

• Dosage: 3–6 grams for adults, usually taken at bedtime.

• Onset of action: 6–12 hours after ingestion.

Precautions:

• Not suitable for long-term use, as it may cause dependency or electrolyte imbalance.

• Avoid use during pregnancy, menstruation, or in cases of chronic digestive weakness, diarrhea, or intestinal obstruction.

• Should be used under guidance of a qualified practitioner, especially when used alongside other laxatives or medications.