Supaveda · Ingredient Spotlight
Ashoka
Saraca asoca (Roxb.) Willd. — The Tree Without Sorrow
Also known as: Saraca indica · Ashok Vriksha · Hempushpa · Stri Hitam · Kanadhara
Ashoka (Saraca asoca) is one of Ayurveda's most revered and spiritually significant trees — its very name meaning "without sorrow" — and for over two thousand years it has been regarded as the foremost herb for women's reproductive health, earning the epithet Stri Hitam: "that which is beneficial to women."
An evergreen tree native to the Indian subcontinent's tropical forests and Western Ghats, S. asoca is renowned for its cascading clusters of vivid orange-red flowers and its deeply medicinal bark. The Charaka Samhita, Sushruta Samhita, and Ashtanga Hridayam all describe it as the primary herb for disorders of the female reproductive system — from menorrhagia and dysmenorrhoea to uterine fibroids and leucorrhoea. 1 Modern pharmacology has identified a broad spectrum of bioactivities in the stem bark, confirming what ancient physicians observed: that this tree exerts a profound, multi-mechanistic effect on the uterus, hormonal balance, and female reproductive wellbeing.
⚠ Important note — Pregnancy Contraindication
Ashoka bark contains compounds with uterotonic (uterus-stimulating) and oxytocic activity — properties that are therapeutic for non-pregnant women but render it contraindicated during pregnancy. It must not be taken internally at therapeutic doses during pregnancy. This is clearly documented in both classical Ayurvedic texts and modern pharmacological reviews. 2 Please read the Safety section for full guidance.
Sacred Significance & Cultural Context
The Ashoka tree occupies a uniquely sacred place in Indian civilisation that extends far beyond medicine. In Buddhist tradition, it is said that Queen Maya of Sakya gave birth to Lord Gautama Buddha under an Ashoka tree in the garden of Lumbini. In the Ramayana, the Ashoka Vatika — a garden of Ashoka trees — was where Hanuman first found Sita. The tree is the state tree of Odisha, features in multiple classical texts of Indian literature, and has been planted near temples and sacred sites across South Asia for millennia. 3
This spiritual and cultural centrality is not incidental. Ashoka was planted near women's living quarters in classical Indian households, tended by women, and prescribed by Vaidyas (Ayurvedic physicians) specifically for women's conditions. The name Stri Hitam — "beneficial to women" — and the popular epithet "Friend of Women" encode a two-thousand-year clinical tradition of observation about the tree's therapeutic relationship with the female body. 1
At a Glance — Key Evidence-Backed Benefits
Traditional Ayurvedic Uses
Ashoka's place in Ayurveda is singular: it is the most consistently prescribed herb across all three major classical compilations for the category of Artavadushti — disorders of menstruation. In the Charaka Samhita (Chikitsa Sthana), Ashoka is prescribed for Raktapradara (excessive menstrual bleeding); in the Sushruta Samhita, it features in formulas for uterine disorders; and in Ashtanga Hridayam, it is listed as a primary herb for female reproductive conditions. 14
The Charaka Samhita describes Ashoka with the verse: "Ashokas tuvaro grahi hima raktapittanut / Yonidoshaharo varnya vishaharo krimighna" — "Ashoka is astringent, constipative, cold in potency, alleviates Raktapitta, removes disorders of the female genital tract, improves complexion, destroys poison and kills parasites." This single verse captures six distinct therapeutic properties, each now corroborated by modern pharmacological evidence. 1
Ayurvedic Properties (Guna)
Conditions Traditionally Treated
- Raktapradara (menorrhagia / excessive menstrual bleeding) — Ashoka's foremost classical indication
- Kashta Artava (dysmenorrhoea / painful menstruation)
- Leucorrhoea (Shvetapradara) — abnormal vaginal discharge
- Dysfunctional uterine bleeding (DUB) and fibroids (Granthi)
- Endometriosis and pelvic inflammatory conditions
- Irregular menstrual cycles and hormonal imbalance
- Postnatal recovery and uterine involution
- Skin conditions — complexion-enhancing (Varnya) properties noted in classical texts
- Haemorrhoids with bleeding and urinary disorders
How It Was Traditionally Administered
The stem bark (Twak) is the primary medicinal part, used as a decoction (Kwath), powder (Churna), medicated ghee (Ashokaghrita), or self-fermented tonic (Ashokarishta). Ashokarishta — a classical fermented preparation containing Ashoka bark alongside over a dozen other herbs — is one of the most widely prescribed Ayurvedic formulas for menstrual disorders and remains in widespread use across India today. The bark was also administered as a cold infusion (Sheeta Kashaya), since Ashoka's potency is cooling (Sheeta Veerya) and excessive heat in preparation may reduce efficacy. Externally, bark paste was applied for skin conditions and pain.
Key Active Compounds
The stem bark of S. asoca is the most phytochemically characterised part and the primary therapeutic portion used in Ayurvedic medicine. It contains an exceptionally diverse array of bioactive compounds — flavonoids, tannins, glycosides, saponins, steroids, and organic acids — whose combined action accounts for the herb's broad therapeutic spectrum. 25
Primary Bioactive Constituents of Saraca asoca Bark
How Ashoka Works: Uterine & Hormonal Mechanisms
The multi-mechanistic action of Ashoka on the female reproductive system is one of the most striking examples of a single plant acting on multiple interconnected physiological targets simultaneously. Modern pharmacology has begun to characterise the distinct mechanisms through which it exerts its classical effects. 26
Ashoka's Five Reproductive Mechanisms — Confirmed Preclinically
This combination of haemostatic, oestrogenic, uterotonic, anti-prostaglandin, and hormonal-regulatory mechanisms explains why Ashoka has such a broad clinical profile in women's reproductive health — addressing excessive bleeding, painful periods, irregular cycles, hormonal imbalance, and uterine weakness through distinct but complementary pathways.
What the Research Says
A comprehensive narrative review published in the Eureka Select (Bentham Science) journal in 2022 synthesised the full available evidence on S. asoca, describing it as having "unique pharmacological role in treating various uterine complications, menstrual disorders, and bacterial infections, bleeding haemorrhoids, urinary and dermatological problems." 7 The 2024 ScienceDirect comprehensive review with historical perspective further contextualised its evidence base and conservation status. 8
Ashoka's use for excessive menstrual bleeding is its most clinically documented application. The U-3107 herbal preparation — a multi-herb formula in which Ashoka is the primary constituent — was the subject of a pilot clinical study (Evecare, Indian Practice, 1998) which reported significant improvement in dysfunctional uterine bleeding (DUB) symptoms. 7 A subsequent open clinical study by Ganguli and Paramesh (2010) evaluated the same preparation in 40 women with infertility associated with DUB, finding improvements in menstrual regularity alongside reproductive outcomes. 7 The primary mechanism — leucoanthocyanins reducing capillary fragility and haematoxylin's astringent activity — is directly validated by pharmacognostic studies. A 2015 paper by Prakash and Ashoka specifically reviewed Ashoka bark powder as "a persuasive herb for menorrhagia," summarising available evidence for its antimenorrhagic application. 9
A 2023 peer-reviewed study published in ACS Omega and indexed on PMC (PMC10652831) specifically evaluated the ethanolic extract of S. asoca bark (EESA) for management of polycystic ovarian syndrome (PCOS) in letrozole-induced rat models. 10 HPLC analysis confirmed the presence of kaempferol, rutin, (–)-epicatechin, salicylic acid, and gallic acid in the extract. Ashoka treatment significantly improved key PCOS markers — normalising oestrous cycle, reducing body weight gain, improving lipid profiles, and demonstrating antiandrogenic activity that addressed the hyperandrogenism characteristic of PCOS. Histopathological examination showed improved ovarian morphology in treated groups. The authors concluded that S. asoca "provides a scientific rationale for the traditional uses of S. asoca in treating reproductive diseases" and may represent a valuable natural approach to PCOS management.
The earliest documented mechanistic study of Ashoka — Middelkoop and Labadie (1985) in Zeitschrift für Naturforschung — demonstrated that Ashoka bark acts on the PGH₂ synthetase enzyme complex of the sheep vesicular gland, inhibiting prostaglandin synthesis. 11 Since prostaglandins are the primary biochemical mediators of menstrual pain (dysmenorrhoea), this finding directly validates Ashoka's classical use for painful periods. More recent studies have confirmed broader anti-inflammatory activity via COX enzyme inhibition and reduced pro-inflammatory cytokine production. Analgesic effects of leaf extracts have been demonstrated in tail-flick and hot-plate models in mice. 2 The anti-inflammatory flavonoids kaempferol and quercetin identified by HPLC further substantiate this mechanism, as both are established COX/LOX inhibitors. 10
Multiple extraction methods of S. asoca stem bark have been evaluated for antioxidant activity using DPPH and H₂O₂ radical-scavenging in vitro models. The acetone extract prepared by ultrasonication showed the lowest IC₅₀ value (97.82 μg/ml), indicating strong free-radical scavenging activity. 5 Antioxidant activity is attributed primarily to the high phenolic content of the bark — gallic acid, ellagic acid, catechins, and flavonoids. These antioxidant compounds protect reproductive tissues from oxidative damage — a clinically relevant property given that oxidative stress is increasingly implicated in conditions such as endometriosis, PCOS, and unexplained infertility. The 2023 PCOS study also confirmed that S. asoca reduced renal oxidative stress and provided antioxidant effects in treated animals, with all extracts showing significant activity at 500 μg/ml. 10
Aqueous and ethanolic extracts of S. asoca have demonstrated antibacterial activity against a broad range of gram-positive and gram-negative pathogens in multiple peer-reviewed studies. The dried flower buds have been specifically reported to have antibacterial activity in microbiological studies. 8 Antifungal activity has also been confirmed. These antimicrobial properties have direct clinical relevance to Ashoka's traditional use in leucorrhoea (vaginal discharge associated with infection or inflammation), where antimicrobial action complements the astringent and anti-inflammatory properties to address both the infectious cause and the inflammatory tissue response. The comprehensive 2023 ScienceDirect review lists antimicrobial activity as among the most consistently demonstrated properties across Ashoka studies. 8
A pharmacological study by Verma et al. (2010) published in the Journal of Pharmaceutical Sciences Research evaluated S. indica leaves for CNS depressant activity in mice, finding significant sedative and analgesic properties. 2 More recent research has investigated Ashoka's antidepressant potential: a 2022 study published in the American Journal of Translational Research characterised antidepressant activity of Ashoka flower extract in mice subjected to acute restraint stress, finding a significant reduction in immobility time (a validated depression-like behaviour) comparable to established antidepressants. 7 These findings are consistent with the traditional Ayurvedic observation that Ashoka supports emotional wellbeing — its very name encoding the concept of freedom from grief — and align with the modern understanding that female hormonal health and mood regulation are deeply interconnected.
Preclinical studies have identified cytotoxic activity of S. asoca bark compounds against multiple cancer cell lines — including breast, ovarian, uterine, colon, and liver cancer cells, as well as histiocytic lymphoma and myeloid leukaemia. 6 The mechanisms appear to involve quinones and cyclic hexapeptides in the bark inducing apoptosis in cancer cells. A study by Cibin et al. (2012) specifically confirmed antimutagenic and chemoprotective effects of Ashoka in experimental models. While this evidence is exclusively preclinical and should not be interpreted as a clinical claim, it represents an important and growing area of research interest for a herb that has long been associated with the health of reproductive organs specifically prone to hormonal cancers. 8
Traditional Use & Modern Dosage
Ashoka is primarily taken as a bark preparation — decoction, powder, or the classical fermented preparation Ashokarishta. Timing relative to the menstrual cycle matters in classical practice: for menorrhagia, it is often given in the proliferative phase (days 5–14) rather than during active bleeding.
| Form | Traditional Preparation | Typical Dose (Adult) |
|---|---|---|
| Bark Decoction (Kwath) | Bark boiled in water or milk and strained; classical primary preparation for menstrual disorders | 20–40 ml twice daily; taken before meals |
| Powder (Churna) | Dried bark ground fine; taken with water, warm milk or honey | 3–6 g/day in divided doses |
| Ashokarishta | Classical self-fermented tonic containing Ashoka bark and over 12 supporting herbs; most widely used classical Ashoka formulation | 15–30 ml with equal water, twice daily after meals |
| Medicated Ghee (Ashokaghrita) | Bark cooked into ghee; classical preparation for hormonal support and uterine toning | 1–2 tsp daily with warm milk |
| Capsules / Tablets (SupaWoman) | Standardised Ashoka bark in our SupaWoman blend with Shatavari and Kumari | As directed on product — typically 1–2 capsules twice daily with food |
Ashoka is typically used in 4–8 week cycles for therapeutic purposes, with rest periods. For menorrhagia, it is traditionally given for three consecutive menstrual cycles. For longer-term hormonal balance support, lower maintenance doses are used under practitioner guidance. The cold infusion (Sheeta Kashaya) is sometimes preferred over boiled decoction to preserve heat-sensitive constituents.
Supaveda Products with Ashoka
Ashoka is a key ingredient in our SupaWoman formula — specifically chosen as the uterine tonic and menstrual support herb of the trio:
An organic blend of three herbs chosen by Ayurvedic experts specifically for women's health across all stages of reproductive life: Ashoka (Saraca asoca) as the foremost uterine tonic for menstrual health; Shatavari (Asparagus racemosus) as the premier hormonal and reproductive adaptogen; and Kumari (Aloe vera) for cycle regulation, skin, and hair health. Together they address three dimensions of female wellbeing — uterine strength, hormonal balance, and systemic nourishment — in a single daily formula rooted in over two thousand years of Ayurvedic clinical tradition.
Our organic, vegan take on the 3,000-year-old Chyawanprash formula — 16 Ayurvedic herbs in a base of jaggery and coconut oil. Ashoka's inclusion in this comprehensive formula contributes its cooling, astringent, and blood-purifying properties to the overall rejuvenative blend — supporting the haemostatic and anti-inflammatory dimensions of the formula.
Safety & Precautions
Ashoka has a well-established safety profile when used by non-pregnant adults at recommended doses. Its long history of use in Ayurvedic medicine attests to its general tolerability. The following precautions are critical:
Please note
- Pregnancy — STRICTLY CONTRAINDICATED: Ashoka bark has confirmed uterotonic and oxytocic activity — it stimulates uterine contractions. Internal therapeutic use during pregnancy can cause premature labour or miscarriage. Do not use internally at any dose during pregnancy. 2
- Breastfeeding: Insufficient safety data — avoid therapeutic internal use during breastfeeding without professional guidance.
- Hormone-sensitive conditions: Ashoka has oestrogenic activity. Those with oestrogen-sensitive conditions (including certain hormone-receptor-positive cancers, fibroids, endometriosis in oestrogen-sensitive stages) should consult a healthcare provider before use. 6
- Children: Use only at age-appropriate doses under the supervision of a qualified Ayurvedic or healthcare practitioner.
- HRT and hormonal contraception: Potential interaction with exogenous oestrogens — those on HRT or hormonal contraceptives should seek professional guidance before adding Ashoka therapeutically.
- Liver conditions: Like all tannin-rich herbs, very high doses over prolonged periods may stress the liver. Keep within recommended doses and cycle with rest periods.
Key Takeaways
Evidence-backed bullet points:
Ashoka means "without sorrow" — its Sanskrit name encoding two millennia of observation about its role in relieving women's pain and distress
Known as Stri Hitam — "that which is beneficial to women" — Ayurveda's most consistent and celebrated herb for female reproductive health
Leucoanthocyanins in the bark reduce capillary fragility and inhibit excessive uterine bleeding — a direct, mechanistically characterised antimenorrhagic effect
Acts on the PGH₂ synthetase enzyme — inhibiting prostaglandin synthesis, directly reducing the biochemical cause of menstrual cramping
2023 PMC study: Ashoka extract shows significant antiandrogenic and metabolic benefits in PCOS animal model — normalising oestrous cycle and lipid profiles
Regulates FSH and LH levels — the hormones that govern ovulation, menstrual cycle regularity, and reproductive vitality
2022 study: Ashoka flower extract shows antidepressant activity in stressed mice — consistent with its name "without sorrow" and role in emotional wellbeing
Used in Ashokarishta — a classical Ayurvedic fermented tonic that remains one of the most widely prescribed formulations for menstrual disorders in India today
One of India's most sacred trees — mentioned in the Ramayana, Buddhist tradition, and the state tree of Odisha — revered for millennia in both medicine and spirituality
Strictly contraindicated in pregnancy due to uterotonic activity — safe and beneficial for non-pregnant women at therapeutic doses
References
- Ansari, A.A., Ansari, M.T. and Azmi, A. (2016) 'Ethnobotanical, phytochemical and pharmacological properties of Saraca asoca bark: A Review', European Journal of Pharmaceutical and Medical Research, 3(6), pp.357–370. Available at: https://www.researchgate.net/publication/308375772
- Rasekar, V. and Shahi, S. (2023) 'Medical application of Ashok tree (Saraca asoca): A review', International Research Journal of Modernization in Engineering, Technology and Science (IRJMETS), December 2023. Available at: https://www.irjmets.com/uploadedfiles/paper/issue_12_december_2023/47304
- Smitha, G.R. and Thondaiman, V. (2016) 'Reproductive biology and breeding system of Saraca asoca (Roxb.) De Wilde: a vulnerable medicinal plant', SpringerPlus, 5(1), pp.1–5. doi: 10.1186/s40064-016-2414-4. PMC4919054.
- Pradhan, P., Joseph, L., Gupta, V., Chulet, R., Arya, H., Verma, R. and Bajpai, A. (2009) 'Saraca asoca (Ashoka): a review', Journal of Chemical and Pharmaceutical Research, 1(1), pp.62–71.
- Salvi, S., Varghese, R., Digholkar, G. et al. (2022) 'Saraca asoca: A scoping review on the phytoconstituents, bioactives and their therapeutic effects', German Journal of Pharmaceutical and Biomaterial Sciences, 1(3), pp.3–13. doi: 10.5530/gjpb.2022.3.11.
- Chakraborty, R. (2021) 'A review on pharmacological effects of Ashoka (Saraca indica)', International Research Journal on Innovations in Engineering, Science and Technology. Available at: https://irjmets.com [see also Netmeds Health Library, 2025 — FSH/LH regulation reference].
- Salim, F., Ahmad, M., Azmi, A. and Ahmad, S. (2022) 'Saraca asoca: From Traditional Herb to Modern Drug as a Cure for Various Diseases', Endocrine, Metabolic & Immune Disorders — Drug Targets (Eureka Select / Bentham Science). doi: 10.2174/1871530322666221109103128. [Includes: Ganguli & Paramesh 2010 open clinical study; Paramesh et al. 1998 pilot study; Shashikumara et al. 2022 antidepressant study; Verma et al. 2010 CNS depressant study].
- Vignesh, S., Amal, T.C., Gopi, S. et al. (2023) 'A comprehensive review on Saraca asoca (Fabaceae) — Historical perspective, traditional uses, biological activities, and conservation', Journal of Ethnopharmacology, 315, p.116678. doi: 10.1016/j.jep.2023.116678. [ScienceDirect, June 2023].
- Prakash, S. and Ashoka, K.N.D. (2015) 'Saraca indica Linn.: a persuasive herb for menorrhagia', International Journal of Applied Ayurvedic Research, 2, pp.92–97.
- Bibi, F., Akhter, N., Yasinzai, M., Ali, A., Khan, A., Shah, A. and Ahmad, A. (2023) 'Phytochemical-based study of ethanolic extract of Saraca asoca in letrozole-induced polycystic ovarian syndrome in female adult rats', ACS Omega, 8(44), pp.41629–41642. doi: 10.1021/acsomega.3c05742. PMC10652831.
- Middelkoop, T.B. and Labadie, R.P. (1985) 'The action of Saraca asoca Roxb. de Wilde bark on the PGH₂ synthetase enzyme complex of the sheep vesicular gland', Zeitschrift für Naturforschung C: Journal of Biosciences, 40(7–8), pp.523–526. doi: 10.1515/znc-1985-7-812. PMID: 3931371.
- Dabur, R., Gahlaut, A., Hooda, V. and Shirolkar, A. (2013) 'β-sitosterol in different parts of Saraca asoca and herbal drug Ashokarishta: qualiquantitative analysis by liquid chromatography-mass spectrometry', Journal of Advanced Pharmaceutical Technology & Research, 4(3), pp.146–150. doi: 10.4103/2231-4040.116783. PMC3757909.