# Eucalyptus Herb

> Eucalyptus Herb (Eucalyptus globulus) is a plant used in Ayurveda. 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 name:** Eucalyptus globulus

## Names and identification

| Language | Name |
|----------|------|
| English | Eucalyptus_Herb |

## What is it made of?

### Key Active Markers

- Derived from constituent herbs (see individual herb profiles)
- Standardized on primary bioactive markers

**Analytical Methods:** HPLC fingerprinting, TLC (identity), LC-MS/MS (marker quantification)

## 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

**Bioavailability:** [Eucalyptus](/herb/eucalyptus/) leaves contain [polyphenols](/glossary/compounds-o-q/#polyphenols) ([tannins](/reference/tannins/), ellagic acid, [flavonoids](/reference/flavonoids/)) in addition to essential oil. Aqueous infusion extracts primarily polyphenols and residual volatile oil. Polyphenol bioavailability is moderate (10-20% for flavonoids, low for condensed tannins). [Ellagitannins](/glossary/compounds-d-g/#ellagitannins) are metabolized by gut flora to urolithins. The residual essential oil (1,8-[cineole](/glossary/compounds-c-d/#cineole)) in dried leaf preparations contributes aroma and mild [expectorant](/reference/expectorant/) action but at lower levels than pure essential oil. Enhancement: standardized leaf extracts with defined polyphenol content in phytosome form.

**Optimal Timing:** Infusion/tea: 2-3 times daily between meals for respiratory conditions; capsule: after meals twice daily; poultice: as needed for local pain relief

**Standardized Extract:** Leaf extract standardized to NLT 10% total polyphenols (as gallic acid equivalent) and NLT 1% 1,8-cineole (residual essential oil). Extract ratio 5:1 to 8:1.

**Shelf Life:** 2 years (dried leaves in sealed packaging); 2 years (capsule/tablet); 3 years (tincture)

**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](/glossary/compounds-q-t/#rutin), [Quercetin](/reference/quercetinquercetin/), 1,8-Cineole (residual), Eucalyptin, Macrocarpal A

### Extraction Methods

- Hot water infusion (tea preparation)
- Hydroalcoholic extraction (60:40 ethanol:water)
- Aqueous decoction
- Methanol extraction for phytochemical profiling
- Spray-dried aqueous extract

### Synergistic Combinations

- With [Tulsi](/herb/tulsi/) leaf for respiratory and immune support
- With Adulsa (Adhatoda) for bronchial conditions
- With [Yashtimadhu](/herb/yashtimadhu/) for sore throat and cough
- With [Ginger](/herb/ginger/) for enhanced expectorant and warming effect

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Canonical version of this page: https://nighantu.ageayurveda.com/herb/eucalyptus-herb/

## Sources

- Amidha Ayurveda Herb Database (700+ herbs, CC-BY-4.0)
- Ayurvedic Pharmacopoeia of India

Published by Age Ayurveda in the Nighantu. Educational reference only, not medical advice.
Incorporates material from the Amidha Ayurveda Herb Database under CC BY 4.0.