Simsapa in Ayurveda: Properties & Everyday Use

In short

Simsapa is a plant of the classical Ayurvedic tradition. Classical Ayurveda describes it as astringent and bitter in taste, light and dry in quality, and warming by nature. It is known mainly through the classical texts rather than the everyday kitchen.

Good to know

This page is for learning, not a guide to taking it. If you're pregnant, nursing or take regular medication, check with your doctor before using it.

What it is

Simsapa (also spelled Shimshapa) is the Sanskrit name for Dalbergia sissoo Roxb. ex DC., a large deciduous tree in the Fabaceae (legume) family native to the Indian subcontinent. Ayurvedic Dravyaguna teaching material identifies the heartwood, bark, and leaves as the useful parts, and notes its classical groupings in the Charaka and Sushruta Samhitas. (Dravyaguna e-notes, JVWU Jaipur)

Classical properties

Traditional use

Classical Ayurvedic texts place Simsapa in several drug groups: the Charaka Samhita lists it under Asavayonisara and Kasayaskandha, and the Sushruta Samhita under the Salasaradi and Muskakadi ganas: groupings used for skin, urinary, and metabolic conditions. (Dravyaguna e-notes, JVWU Jaipur) In traditional practice, preparations of the wood, bark, and leaves have been used for leukoderma, diarrhea, dyspepsia, ulcers, stomach disorders, itching, and skin ailments such as scabies. (Journal of Pharmacognosy and Phytochemistry review, 2023) These are traditional uses, not clinical proof of efficacy.

What research has looked at

All published pharmacological work on Dalbergia sissoo is preclinical: animal or laboratory studies, with no human randomized trials found. Results are suggestive, not conclusive.

Anti-inflammatory effects (animal studies)

In rats, an ethanolic bark extract of D. sissoo showed dose-dependent anti-inflammatory activity, with the highest of three tested doses the most potent. (International Journal of Pharmacognosy review)

Pain relief and fever reduction (animal studies)

An ethanol extract of D. sissoo seeds showed moderate analgesic and notable antipyretic (fever-reducing) activity in animal models. (International Journal of Pharmacognosy review) A separate study found that an ethanolic bark extract reduced pain responses in mice in standard antinociceptive tests. (Journal of Plants Studies review, citing J. Nat. Sci. Biol. Med. 2011)

Blood sugar effects (animal studies)

A 2010 study reported that an ethanolic leaf extract of D. sissoo lowered blood glucose in alloxan-induced diabetic rats. (International Journal of Pharmacognosy review) This is a single animal finding: it does not establish any antidiabetic effect in humans.

Antioxidant activity (laboratory studies)

Extracts of the stem bark showed marked (chloroform extract) to moderate (methanol extract) antioxidant activity across several in-vitro assays. (International Journal of Pharmacognosy review) Laboratory antioxidant activity does not translate directly into health benefits in people.

Safety notes

No human safety trials of Simsapa were found in the peer-reviewed literature, so safety data is limited: talk to a clinician before use. The pharmacological studies above used short-term dosing in rodents and say nothing about long-term safety, safe human doses, or interactions with medicines. Because traditional preparations are sometimes used during skin treatments and purgation regimens, unsupervised internal use is not advisable. Pregnant or breastfeeding individuals should avoid it unless a qualified practitioner advises otherwise.

FAQs

What is Simsapa?

Simsapa (Shimshapa) is the Sanskrit name for Dalbergia sissoo Roxb. ex DC., a large deciduous timber tree in the legume family, also known as Indian rosewood or shisham. In Ayurveda, its heartwood, bark, and leaves are the parts used in classical practice, and classical texts group it with drugs for skin, urinary, and metabolic conditions. (Dravyaguna e-notes, JVWU Jaipur)

What is Simsapa used for in Ayurveda?

Traditionally, Simsapa preparations have been used for skin conditions (including leukoderma and itching), diarrhea, dyspepsia, ulcers, and general stomach disorders. (Journal of Pharmacognosy and Phytochemistry review, 2023) These are traditional indications recorded in classical and folk literature: they are not proven medical treatments, and modern evidence for them is limited to animal studies.

Is there scientific evidence that Simsapa reduces inflammation?

Only preclinical evidence exists. An ethanolic bark extract reduced inflammation in rats in a dose-dependent manner, with the highest tested dose showing the strongest effect. (International Journal of Pharmacognosy review) No human trials have tested Simsapa for any inflammatory condition, so this cannot be taken as evidence it works in people.

Can Simsapa help with diabetes?

There is no human evidence. A single 2010 animal study found that an ethanolic leaf extract lowered blood glucose in diabetic rats. (International Journal of Pharmacognosy review) Animal results frequently fail to replicate in humans, so Simsapa should not be used as a diabetes treatment or as a substitute for prescribed medication.

Is Simsapa safe?

Safety data is limited: talk to a clinician. No published human safety trials were found, and the animal studies used short-term dosing that reveals nothing about long-term safety, drug interactions, or safe human doses. People who are pregnant, breastfeeding, or taking regular medication should be especially cautious and seek qualified guidance before considering it.

Which part of the Simsapa plant is used?

Ayurvedic sources describe the heartwood, bark, and leaves as the useful parts. (Dravyaguna e-notes, JVWU Jaipur) The heartwood yields a fixed oil and tannins, while most modern pharmacological studies have tested bark, leaf, or seed extracts in animals. Because no human dosing studies exist, there is no evidence-based recommended dose for any part.

Sources

This article is for educational purposes only and is not medical advice. Consult a qualified Ayurvedic practitioner or clinician before using any herb.

Related herbs

Herbs with overlapping classical actions and dosha effects in the Swastik herb library.

  • Bimbi — shares Medohara actions; also pacifies Kapha & Pitta
  • Dadrughna — shares Kushtaghna actions; also pacifies Pitta & Kapha
  • Daruharidra — shares Kushtaghna actions; also pacifies Pitta & Kapha
  • Haridra — shares Kushtaghna actions; also pacifies Kapha & Pitta
  • Nimba Beeja — shares Kushtaghna actions; also pacifies Pitta & Kapha
  • Aparajita — shares Kushtaghna actions; also pacifies Pitta & Kapha
  • Aragvadhadi Kwath — shares Kushtaghna actions; also pacifies Pitta & Kapha
  • Aragwadha — shares Kushtaghna actions; also pacifies Pitta & Kapha