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Koshamra

Schleichera oleosa

Koshamra (Schleichera oleosa) is a plant drug, from the Sapindaceae family.

Key facts
Botanical nameSchleichera oleosa
FamilySapindaceae
OrderSapindales
Taxon identifiersGBIF 3189945 · Wikidata Q13094301 · NCBI Taxonomy 290996

The evidence at a glance

12papers on this site for this drug, published 2000 to 2026, every one with a DOI.

  • 12Laboratory and animal studies

A count is not a conclusion and a tier is a study design, not a verdict. Everything listed here is laboratory or animal work, which does not show an effect in people.true See the research index for how papers are tiered.

Names and identification

LanguageName
EnglishKoshamra

Ayurvedic pharmacology (Dravyaguna)

PropertyValueDescription
Rasa (Taste)AmlaPrimary taste
Guna (Quality)Guru, SnigdhaPhysical quality
Virya (Potency)UshnaHeating/Cooling effect
Vipaka (Post-digestive)AmlaPost-digestive effect

Dosage forms and preparation

Dosage Forms: Churna (bark powder), Kashayam (decoction), Capsule, Swarasa (fruit juice), Lepa (paste for external use)

Standard Dosage: 3-5 g bark powder twice daily; 50-100 mL decoction; 10-20 mL fruit juice; external paste as needed

Optimal Timing: After meals for digestive astringent action; decoction between meals where traditionally used in diarrhoea; fruit juice anytime as nutritive

Storage: Bark powder in airtight containers at 15-30°C. Seed oil in dark glass bottles, protected from light and heat. Fruit juice requires refrigeration.

Marker Compounds: Gallic acid, Ellagic acid, Catechin, Leucocyanidin, Arachidic acid (seed oil), Oleic acid (seed oil), Beta-sitosterol

Synergistic Combinations

  • Amra (Mango) for fruit-based nutritive preparations
  • Amalaki for antioxidant synergy
  • Kutaja, traditionally combined in formulations for diarrhoea
  • Lodhra for astringent formulations

Published research

Literature indexed in PubMed that concerns this subject, grouped by study type. A paper appearing here is a record of what has been published, not evidence that the subject works, and laboratory or animal results do not transfer to people. Study titles link to PubMed so you can read the source rather than take our word.

Laboratory and animal studies12

  1. Tandalekar YB, Kulshreshtha S, Jangra B and others. 2026. Schleichera oleosa Bark Extract Shows Potent Anti-Arthritic Activity in Complete Freund's Adjuvant (CFA)-Induced Arthritis in Rats and Network PharmacologyChemistry & biodiversity. PMID 41918331 · doi:10.1002/cbdv.202502071
  2. Vanaja P, Moorthy NSHN, Rajpoot VS and others. 2025. Metabolite profiling, antimalarial potentials of Schleichera oleosa using LC-MS and GC-MS: in vitro, molecular docking and molecular dynamicsFrontiers in molecular biosciences. PMID 40026697 · doi:10.3389/fmolb.2025.1543939
  3. Rawat P, Singh O, Thapliyal M and others. 2025. Assessment of population ecology and potential habitat modelling of Schleichera oleosa in Uttarakhand Himalaya of India: implications for management and conservationEnvironmental monitoring and assessment. PMID 39939556 · doi:10.1007/s10661-025-13700-8
  4. Prakulanon J, Duangsrisai S, Vajrodaya S and others. 2024. Evaluation of phytochemical profile, and antioxidant, antidiabetic activities of indigenous Thai fruitsPeerJ. PMID 39011385 · doi:10.7717/peerj.17681
  5. Zulham, Subarnas A, Wilar G and others. 2023. Safety Assessment of Schleichera oleosa Lour. Leaves Extract: Acute and Subchronic StudiesPakistan journal of biological sciences : PJBS. PMID 37779329 · doi:10.3923/pjbs.2023.148.158
  6. Sahu RK, Kumar B, Singh R and others. 2022. Schleichera oleosa Seed Extract Reduced the Proliferation of Breast Cancer by Regulating the BRCA1 and p16 GenesAsian Pacific journal of cancer prevention : APJCP. PMID 35092383 · doi:10.31557/APJCP.2022.23.1.151
  7. Khan MJ, Saraf S, Saraf S. 2017. Anti-inflammatory and associated analgesic activities of HPLC standardized alcoholic extract of known ayurvedic plant Schleichera oleosaJournal of ethnopharmacology. PMID 27544002 · doi:10.1016/j.jep.2016.08.021
  8. Vashishtha A, Rathi B, Kaushik S and others. 2013. "Phloem sap analysis of Schleichera oleosa (Lour) Oken, Butea monosperma (Lam) Taub. and Ziziphus mauritiana (Lam) and hemolymph of Kerria lacca (Kerr) using HPLC and tandem mass spectrometry"Physiology and molecular biology of plants : an international journal of functional plant biology. PMID 24431523 · doi:10.1007/s12298-013-0194-2
  9. Thind TS, Rampal G, Agrawal SK and others. 2012. Evaluation of cytotoxic and radical-scavenging activities of root extracts of Schleichera oleosa (Lour.) OkenNatural product research. PMID 21988592 · doi:10.1080/14786419.2011.606547
  10. Ghosh P, Chakraborty P, Mandal A and others. 2011. Triterpenoids from Schleichera oleosa of Darjeeling Foothills and Their Antimicrobial ActivityIndian journal of pharmaceutical sciences. PMID 22303070 · doi:10.4103/0250-474x.91568
  11. Thind TS, Rampal G, Agrawal SK and others. 2010. Diminution of free radical induced DNA damage by extracts/fractions from bark of Schleichera oleosa (Lour.) OkenDrug and chemical toxicology. PMID 20545578 · doi:10.3109/01480540903483433
  12. Pettit GR, Numata A, Cragg GM and others. 2000. Isolation and structures of schleicherastatins 1-7 and schleicheols 1 and 2 from the teak forest medicinal tree Schleichera oleosaJournal of natural products. PMID 10650082 · doi:10.1021/np990346r

Reference lists that include it

Catechin, Ellagic acid, Gallic acid

Reviewed by Dr. Awadesh Pratap Singh, BAMS, on 11 October 2026. What that review covered.

Consult a qualified vaidya before acting on anything here. Ayurvedic practice is prescribed to a person, not to a condition: the same dravya is given, withheld or substituted depending on your constitution, your agni, the season and what else you are already taking. A page cannot know any of that. Self-prescribing from a reference is how the wrong preparation, the wrong dose or the wrong anupana gets used.

Educational reference only. Nothing on this page is medical advice, a diagnosis, or a recommendation to take anything. Traditional uses and research findings are reported as published, not as claims about what any product does. If you take prescribed medication, raise any interaction with the prescriber rather than acting on a page. See our editorial standards.