Pattanga: Benefits, Evidence & Safety

TL;DR

Pattanga is the dried heartwood of Caesalpinia sappan, the red sappanwood tree, used in Ayurveda as an astringent, haemostatic (stambhana) remedy. Its pigment brazilin inhibits inflammatory mediators in cell assays, and extracts improved wound healing in rats and human fibroblast models: but no human trials exist, so medicinal benefit is unproven.

What it is

Pattanga (also spelled Patranga) consists of the dried heartwood of Caesalpinia sappan Linn. (family Caesalpiniaceae), a shrub or small tree 6–9 m tall found in South India and Bengal, often cultivated as a hedge plant (Ayurvedic Pharmacopoeia of India, Vol. 4). The wood is the source of the red dye brazilin, a homoisoflavonoid pigment responsible for its deep colour (Ayurvedic Pharmacopoeia of India, Vol. 4). Brazilin is the heartwood's most studied compound, the most potent inhibitor of inflammatory mediators in macrophage cell assays (IJP review).

Traditional use

In Ayurvedic tradition the heartwood is used as an astringent and haemostatic (stambhana) drug: the Bhavaprakasha Nighantu lists it as grahi (absorbent/antidiarrhoeal), raktasangrahaka (haemostatic) and vranaropaka (wound-healing), with uses in bleeding disorders, diarrhoea and dysentery (per Bhavaprakasha Nighantu). Classical Ayurvedic texts describe its potency as cooling (sheeta veerya) (JAIMS 2021). It is an ingredient of classical formulations including Chandranasavam, Useerasavam and Dasamoolarishtam (IJPQA review). These are traditional uses, not clinical proof.

What modern research says

All efficacy evidence comes from cell and animal studies. There are no human clinical trials of pattanga or sappanwood for any condition.

Inflammation (in vitro)

Ethanol extract and isolated brazilin from C. sappan heartwood displayed anti-inflammatory activity by inhibiting the production of nitric oxide, prostaglandin E2 and TNF-α in macrophage cell assays, with brazilin the most potent compound (IC50 10.3 µM against NO) (Tewtrakul et al., Phytother Res 2015, summarized in IJP review). A separate study found related heartwood compounds active against inflammatory markers in macrophages and chondrocytes (same review). Cell-assay results do not establish anti-inflammatory effects in people.

Wound healing (animal and in vitro)

In albino rats with incision wounds, a topically applied 6.5% sappanwood ethanol extract significantly improved wound-healing parameters, collagen deposition, angiogenesis, fibrosis and IL-2 levels, and wound-length reduction on days 8 and 15, outperforming both ointment base and 10% povidone-iodine (Open Veterinary Journal, PMC). A standardized brazilin-rich heartwood extract promoted human fibroblast proliferation and migration in a scratch-wound assay and was non-toxic to the cells up to 500 µg/mL (JOCPR). Promising, but animal and cell findings are not human evidence.

Acute toxicity (animal)

The ethanol extract showed no acute toxicity in mice in the Tewtrakul 2015 study, which the reviewers cite as supporting its traditional use (IJP review). This is a single-dose animal finding, not a human safety assessment.

What the evidence does not support (yet)

Haemostatic, antidiarrhoeal and wound-healing benefits in humans, and the traditional bleeding-disorder indications, have not been tested in any human trial.

Safety & contraindications

Human safety data for pattanga are essentially absent: the only toxicity data are the no-acute-toxicity finding in mice noted above. Safety data is limited: talk to a clinician before use, especially if you are pregnant or breastfeeding (no data), take anticoagulant or antiplatelet medicines (given the traditional haemostatic claims, an interaction cannot be ruled out), or have a bleeding disorder. Do not use it to self-treat active bleeding.

FAQs

What is pattanga?

Pattanga is the dried heartwood of Caesalpinia sappan (sappanwood), a red dye-wood tree of South India and Bengal, used in Ayurveda as an astringent and haemostatic remedy (Ayurvedic Pharmacopoeia of India, Vol. 4).

What is pattanga traditionally used for?

Traditionally it is used to check bleeding, for diarrhoea and dysentery, and for wound healing, described as cooling in potency; it appears in formulations like Chandranasavam and Dasamoolarishtam (per Bhavaprakasha Nighantu). These are traditional uses, not proven effects.

What is brazilin?

Brazilin is the red homoisoflavonoid pigment of sappan heartwood and its most studied compound: the main driver of the anti-inflammatory activity seen in cell assays (Tewtrakul et al. 2015, via IJP review).

Does pattanga heal wounds?

In rats and in human fibroblast cell models, sappanwood extracts improved wound-healing measures, but no human trial has tested it: so a wound-healing benefit in people is unproven (PMC; JOCPR).

Is pattanga safe?

Human safety data are essentially absent; the only reassurance is a no-acute-toxicity finding in mice. Safety data is limited: talk to a clinician, and do not self-treat bleeding with it (IJP review).

Can pattanga be used in pregnancy?

There are no pregnancy safety data and no human trials at all, so it should be avoided in pregnancy and breastfeeding unless a clinician advises otherwise.

Sources

Disclaimer

This article is for educational purposes only and is not medical advice. Herbal products can interact with medications and are not suitable for everyone. Talk to a qualified healthcare practitioner before use — especially if you are pregnant, breastfeeding, managing a medical condition, or taking prescription medicines.