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Eucalyptus Herb

Eucalyptus globulus

Eucalyptus Herb (Eucalyptus globulus) is a plant drug, also called Nilaniryasah. Aqueous infusion extracts primarily polyphenols and residual volatile oil. Polyphenol bioavailability is moderate (10-20% for flavonoids, low for condensed tannins). Ellagitannins are metabolized by gut flora to urolithins.

Key facts
Botanical nameEucalyptus globulus
Identity sourceAyurvedic Pharmacopoeia of India, Part I, Vol. V: TAILAPARNAH (Leaf)
FamilyMyrtaceae · other entries in this family
OrderMyrtales
Also known asEucalyptus Herb, EucalyptusHerb
Taxon identifiersGBIF 3176787 · Wikidata Q159528 · NCBI Taxonomy 34317
Names in other languages
Sanskritनीलनिर्यासः (nīlaniryāsaḥ)
Tamilயூக்காலிமரம்

Sources: Ayurvedic Pharmacopoeia of India, Part I Vol V, monograph 78 TAILAPARṆAḤ (leaf of Eucalyptus globulus Labill.), Tamil entry (given in the API as the romanisation 'Yukkaalimaram'; Malayalam the same); Ayurvedic Pharmacopoeia of India, Part I Vol V, monograph 78 TAILAPARṆAḤ, Sanskrit: Nīlaniryāsa, Ekalipth, Sugandha Patrah. How we source.

The evidence at a glance

12papers on this site for this drug, published 1874 to 2024, 9 with a DOI.

  • 2Other clinical studies and reviews
  • 10Laboratory 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. Each paper is listed with what it measured on the page below. See the research index for how papers are tiered.

Names and identification

LanguageName
EnglishEucalyptus Herb

What is it made of?

The marker compounds are listed under Dosage forms and preparation, below.

Dosage forms and preparation

Dosage Forms: Dried leaf infusion/tea, Churna (leaf powder), Capsule (leaf extract), Tablet, Tincture (1:5 in 45% ethanol), Poultice (crushed leaves)

Standard Dosage: 2-4g dried leaf as infusion 2-3 times daily; 500-1000mg standardized leaf extract capsule twice daily; 2-5ml tincture three times daily; poultice applied externally as needed

Optimal Timing: Infusion/tea: 2-3 times daily between meals; capsule: after meals twice daily; poultice: applied externally as needed

Storage: Dried leaves in airtight containers below 25 deg C, protected from moisture and light. Tincture: amber glass, room temperature. Tea bags: individually sealed, nitrogen-flushed for aroma retention.

Marker Compounds: Ellagic acid, Gallic acid, Rutin, Quercetin, 1,8-Cineole (residual), Eucalyptin, Macrocarpal A

Synergistic Combinations

  • With Tulsi leaf for respiratory and immune support
  • With Adulsa (Adhatoda), traditionally combined to support bronchial function
  • With Yashtimadhu traditionally combined to support the throat
  • With Ginger for enhanced expectorant and warming effect

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.

Other clinical studies and reviews2

  1. Sadiq MU, Shah A, Haleem A and others. 2023. Eucalyptus globulus Mediated Green Synthesis of Environmentally Benign Metal Based Nanostructures: A ReviewNanomaterials (Basel, Switzerland). PMID 37446535 · doi:10.3390/nano13132019
  2. Elangovan S, Mudgil P. 2023. Antibacterial Properties of Eucalyptus globulus Essential Oil against MRSA: A Systematic ReviewAntibiotics (Basel, Switzerland). PMID 36978341 · doi:10.3390/antibiotics12030474

Laboratory and animal studies10

  1. Shimada A, Ueno H, Kawabata K and others. 2024. Robustanic acid as a glutaminase and Na(+), K(+)-ATPase inhibitor from leaves of Eucalyptus globulusZeitschrift fur Naturforschung. C, Journal of biosciences. PMID 38953524 · doi:10.1515/znc-2024-0071
  2. Quiroz IA, Espinoza SE, Yáñez MA and others. 2024. Potential of Pinus radiata, Eucalyptus globulus and Acacia dealbata for the long-term phytostabilization of copper mine tailingsInternational journal of phytoremediation. PMID 38529629 · doi:10.1080/15226514.2024.2331716
  3. Čmiková N, Galovičová L, Schwarzová M and others. 2023. Chemical Composition and Biological Activities of Eucalyptus globulus Essential OilPlants (Basel, Switzerland). PMID 36903935 · doi:10.3390/plants12051076
  4. Becker LC, Akinsulie A, Bergfeld WF and others. 2023. Safety Assessment of Eucalyptus globulus (Eucalyptus)-Derived Ingredients as Used in CosmeticsInternational journal of toxicology. PMID 37010839 · doi:10.1177/10915818231164354
  5. Sukhikh S, Ivanova S, Babich O and others. 2022. Antimicrobial Screening and Fungicidal Properties of Eucalýptus globulus Ultrasonic ExtractsPlants (Basel, Switzerland). PMID 35684214 · doi:10.3390/plants11111441
  6. Alipanah H, Abdollahi A, Firooziyan S and others. 2022. Nanoemulsion and Nanogel Containing Eucalyptus globulus Essential Oil; Larvicidal Activity and Antibacterial PropertiesInterdisciplinary perspectives on infectious diseases. PMID 36092391 · doi:10.1155/2022/1616149
  7. Hernández MA, Butler JB, Ammitzboll H and others. 2022. Genetic control of the operculum and capsule morphology of Eucalyptus globulusAnnals of botany. PMID 35652517 · doi:10.1093/aob/mcac072
  8. Bokaeian M, Nakhaee A, Moodi B and others. 2010. Eucalyptus globulus (eucalyptus) treatment of candidiasis in normal and diabetic ratsIranian biomedical journal. PMID 21079663
  9. 1875. Eucalyptus GlóbulusEdinburgh medical journal. PMID 29639150
  10. 1874. Eucalyptus GlobulusThe Indian medical gazette. PMID 28994967

Reference lists that include it

Ellagic acid, Gallic acid, Quercetin

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

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