Botanical Overview
Acacia catechu, belonging to the Fabaceae family, is a deciduous tree native to South and Southeast Asia. Commonly known as Catechu, Black cutch, or Khair, its heartwood and bark are used medicinally. This plant is renowned for its rich tannin content and has a long history of traditional use.
Energetics
Energetically, Acacia catechu is considered cooling in temperature and drying in moisture. It has bitter and astringent tastes and is tonifying to the qi.
Primary Actions
- Astringent
- Antimicrobial
- Anti-inflammatory
- Antioxidant
- Hemostatic
Indications
Western
- Diarrhea
- Dysentery
- Inflammation
- Cough
- Sore throat
- Skin infections
- Bleeding
Syndromes
- Gastrointestinal inflammation
- Respiratory irritation
- Wound healing
TCM
- Diarrhea
- Dysentery
- Throat pain
- Bleeding
Syndromes
- Damp-Heat in the Intestines
- Lung Heat
- Bleeding disorders
Ayurveda
- Diarrhea
- Dysentery
- Hemorrhage
- Sore throat
- Skin diseases
Syndromes
- Pitta disorders
- Vata disorders related to bleeding
- Inflammation
Unani
- Diarrhea
- Dysentery
- Bleeding
- Cough
- Skin eruptions
Syndromes
- Hemorrhagic disorders
- Inflammatory conditions
Constituents & Mechanisms
The main phytochemical constituents include catechin, catechu tannins, flavonoids, phenolic acids, and epicatechin. These confer astringent, antimicrobial, anti-inflammatory, and antioxidant effects.
Dosage & Preparations
- Decoction of heartwood: 1-3 g 1-3 times daily
- Powdered extract: 500 mg – 1 g 2-3 times daily
- Tincture 1:5 in 60% alcohol: 2-5 mL 2-3 times daily
Safety & Contraindications
Acacia catechu is generally safe when used appropriately. Caution is advised during pregnancy and lactation due to insufficient evidence. High doses may cause gastrointestinal irritation. Avoid use if allergic to related Fabaceae plants. Potential interactions include potentiation of antidiabetic drugs and interference with iron absorption.
Astrological Correspondences
No credible planetary or elemental rulers have been established for Acacia catechu.
Selected References
- Acacia catechu – WHO Monograph, World Health Organization, 1999
- Pharmacological properties of Acacia catechu: a review, Sanjay Kumar Singh et al., 2015
- Acacia catechu, Plants For A Future
- Acacia catechu, Indian Materia Medica, K.M. Nadkarni, 1976