Rosha Grass for Parasites and Worms: Does It Work?
Does Rosha Grass help with parasites and worms? Ayurveda gives it a modest but real place. The Bhavaprakash Nighantu (Varga 3) lists this lemon-scented grass (Rohisha, Cymbopogon schoenanthus) as anthelmintic (Krimighna, "worm-destroying") and names worm infestations among its uses.
What makes it interesting for worms is its pairing of two actions. The same text calls it a digestive that kindles the digestive fire (Deepana) and a herb that calms Kapha (Kaphashamaka).
That matters because Ayurveda describes parasites, which it calls Krimi, as bred by excess Kapha and sluggish digestion. Rosha Grass is a gentle, digestive-first option rather than a strong expeller.
How Rosha Grass Helps with Parasites and Worms
The Charaka Samhita (Vimana Sthana, Chapter 7) traces Kapha-type parasites to heavy, sweet, sticky and stale food. Fecal parasites share the same causes and live in the large intestine and rectum.
Warm, light and sharp against a heavy gut
Rosha Grass is bitter (Tikta) and pungent (Katu), light (Laghu) and sharp (Tikshna), with a heating potency (Ushna Virya) and a pungent post-digestive effect (Katu Vipaka, the taste-effect that emerges after digestion). These qualities are the opposite of Kapha's heavy, cool, moist nature.
Rekindling digestion
As a digestive and carminative, it strengthens agni, the body's digestive fire. Stronger digestion leaves less Ama, the sticky undigested residue that gives worms a stagnant place to live.
Its essential oil is rich in geraniol. Our sources contain no modern research on its anti-parasitic action.
How to Use Rosha Grass for Parasites and Worms
For worms, the classical internal form is a decoction (kashaya) of the root and leaves, a tea made by simmering the herb in water until it reduces.
| Form | Dose | Best For | When to Take |
|---|---|---|---|
| Decoction of root and leaves | 2 to 4 masha (classical measure) | Worms with indigestion, gas and Kapha heaviness | Our sources do not specify timing |
A masha is a classical unit of weight, and our sources give no modern conversion for this herb. Ask a practitioner to set a measured amount. Our sources also give no anupana (the liquid or food a remedy is taken with) or course length.
Where it fits in a worm plan
Classical practice expels worms with a strong herb such as Vidanga, then clears the bowel with Triphala. Rosha Grass fits as digestive support around that plan, alongside cutting back on the Kapha-building foods the Charaka Samhita names.
Frequently Asked Questions
Is Rosha Grass the same as lemongrass?
They are close relatives. The Bhavaprakash Nighantu treats Rohisha as a variety of fever grass, and the Sahasra Yoga lists it as palmarosa (Cymbopogon martini). Check the botanical name on any product.
Is Rosha Grass strong enough to clear worms alone?
It is listed as anthelmintic, but it works mainly through digestion. For a primary worm expeller, Vidanga is the classical choice.
What is the best form for worms?
The decoction of root and leaves, which is the only internal dose our sources record.
Recommended: Start Rosha Grass for Parasites and Worms
If you want to start using Rosha Grass for worms today, here is the simplest starting point.
Best form: a decoction of the dried grass, because it is the classical internal form and supports digestion while it works on worms.
Kitchen version: simmer a practitioner-set amount of the dried grass in water until it reduces, then strain and sip warm. Cut back on milk sweets, jaggery and stale food at the same time.
Pairing: for a full worm plan, ask about Vidanga to expel and Triphala to clear afterward.
Find Rosha Grass on Amazon ↗ Vidanga Powder ↗
Safety: do not swallow the essential oil, and ask a practitioner before use in pregnancy, while nursing or for children; confirm any worm infection with a stool test.
Safety & Precautions
Our sources do not list specific contraindications, drug interactions or overdose signs for Rosha Grass. That absence is not proof of safety; it means the classical texts we draw on are silent.
What its properties suggest
Rosha Grass is hot in potency (Ushna Virya), sharp (Tikshna) and pungent in its post-digestive effect (Katu Vipaka), which describes how a herb acts after digestion. In Ayurvedic reasoning, herbs with this profile reduce Kapha but can aggravate Pitta, the hot dosha. If you run hot, have acid reflux or tend toward inflammation, use it cautiously.
Essential oil
The distilled oil is a concentrated product used in perfumery. Our sources give no internal dose for the oil, so do not swallow it. The only internal dose in our sources is for the decoction of the grass.
Pregnancy, nursing and medications
Our sources do not cover use in pregnancy or while nursing, or interactions with medicines. Speak to a qualified practitioner or your doctor before using it in those situations, and do not use it in place of medical care for heart disease or fever.
Other Herbs for Parasites and Worms
See all herbs for parasites and worms on the Parasites and Worms page.
▶ Classical Text References (2 sources)
The patient should also inhale powders of rohisha, jiraka, vacha, tarkari, chorakaor powders of- twak, patra, maricha, ela, upakunchika.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 26: Three Vital Organs Treatment (Trimarmiya Chikitsa / त्रिमर्मीयचिकित्सा)
Source: Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 26: Three Vital Organs Treatment (Trimarmiya Chikitsa / त्रिमर्मीयचिकित्सा)
The head should be anointed with pleasantly warm poultices of sarala, kushtha, shankha (conch), devakashtha (devadaru), rohisha, ground with salt.
— Sushruta Samhita, Uttara Tantra, Chapter 26: Chapter 26
Source: Sushruta Samhita, Uttara Tantra, Chapter 26: Chapter 26
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Ayurvedic treatments should be pursued under the guidance of a qualified practitioner (BAMS/MD Ayurveda). Always consult your healthcare provider before starting any new treatment. Content is sourced from classical Ayurvedic texts and may not reflect the latest medical research.