LAISHA · DRAVYAGUNA

Eranda

एरण्ड

Ricinus communis L.

Euphorbiaceae · Ricinus

Benefits & side effects

TRADITIONAL VIEW, WITH SAFETY LIMITS

Hindi name: Arandi

What the texts say Eranda does

What the evidence says. Traditional use is extensive and long recorded. Modern clinical evidence is limited.

Side effects and limits

Avoid or ask first: Pregnancy — absolutely.; Intestinal obstruction, appendicitis, or undiagnosed abdominal pain.; Inflammatory bowel disease.; and more below.

A traditional classification, not a recommendation. The full safety record is below.

Stands in 4 groups

A Samhita can only be read forwards, from the group to its members. This is the same list read backwards.

Photographs

Matra and anupana

AS THE CLASSICAL TEXTS AND THE API PRESCRIBE

Taila5–20 ml
AnupanaUshnodaka · Dugdha
KalaRatri or early morning, for virechana

Eranda mula is the vatahara agrya; eranda taila is the vrishya-virechana agrya. Different parts, different actions, constantly conflated.

Reported from Sharangadhara Samhita and the Ayurvedic Pharmacopoeia of India. Laisha states what the texts prescribe; it does not recommend. No quantity here is adjusted for a particular person — not for agni, koshtha, bala, age, pregnancy, kidney or liver function, or anything already being taken.

Pharmacopoeial standard

Ayurvedic Pharmacopoeia of India, Part I

MarkerRicinoleic acid in the fixed oil
Assay
Total ash
Acid-insoluble ash
Alcohol-soluble extractive
Water-soluble extractive
Foreign matter

Ricinus communis. The seed itself contains ricin, which the cold-pressed and heat-treated oil does not; that distinction is a safety matter, not a quality one.

These are the marker and the identity test for this dravya, and they are not a test Laisha has run on anything. Laisha does not state the numeric limits here: the assay, ash and extractive figures must be read from the current edition of the Ayurvedic Pharmacopoeia of India, because a wrong limit printed here is a number a laboratory would act on. The entries in this library that DO carry figures carry them because each one was checked.

Rasapanchaka

Rasa
MadhuraKatuKashaya
Guna
SnigdhaTikshnaSukshma
ViryaUshna
VipakaMadhura
PrabhavaThe texts treat eranda taila as the chief dravya for vata, and Charaka calls it the best of the purgatives for vatavyadhi. Its being snigdha while purgative is what sets it apart.
DoshakarmaKaphavatahara. Being ushna it can increase pitta.

Madhura, katu and kashaya with ushna virya and madhura vipaka. The madhura vipaka is what allows a purgative to be used without the dryness most purgatives bring.

Karma and part used

VirechanaVataharaShothaharaVedanasthapanaDeepana

These are the actions the classical texts record. They are statements about what the tradition holds, and this library does not restate them as findings about a human body.

Upayukta angaTaila (the oil of the seed)
Mula (the root)
Patra (the leaf)
Why it mattersThe oil is the dravya. The seed itself is never given. The root and leaf are used, chiefly externally and in decoction.

Paryaya

GandharvahastaVatariPanchangulaUruvukaChitra

Panchangula, five-fingered, describes the palmate leaf and is the identification. Vatari, enemy of vata, names the action the texts value it for above all.

Names, by language

EnglishCastor
SinhalaEndaru
NepaliAnder
HindiArandi
KannadaHaralu
TamilAmanakku
TeluguAmudamu
MalayalamAvanakku
MarathiErandi
GujaratiErando
BengaliBherenda
PunjabiArind
OdiaJada
UrduBedanjir

Classical references

Charaka Samhita
Sutrasthana, chapter 25 (Yajjahpurushiya)
Eranda mula is named the foremost among vatahara dravya, and eranda taila the foremost among vrishya-virechana. The two agrya lines are distinct and are often conflated.
Bhavaprakasha Nighantu
Guduchyadi Varga
Gives the rasa, guna, virya and vipaka of eranda.
Sushruta Samhita
Sutrasthana, chapter 38 (Dravyasangrahaniya)
Included among the dravya grouped by action.

Rasa, guna, virya, vipaka and karma are recorded as the classical texts give them, with the text and section named so a student can open the book and check. Where an exact chapter and verse could not be confirmed, this library names the section rather than inventing a number.

Formulations it appears in

Gandharvahastadi KwathaNamed for the dravya by its paryaya.
ErandatailaThe oil itself, used as a dravya.
Nimbamritadi Eranda TailaEranda taila is the base.

Adulterants and substitutes

Castor oil is adulterated with cheaper vegetable oils, and industrial-grade castor oil — pressed and refined for machinery and lamps rather than for use in the body — is sold where the medicinal grade is meant. The two are made differently and the industrial article is not intended for anyone to swallow.

Identity

Matched live against the GBIF backbone on 28 September 2026 at 99 per cent confidence. The seed of this plant contains ricin, among the most poisonous substances known. The oil pressed from it does not, because ricin does not pass into the oil. That single distinction is the whole of this entry's safety section and a student must be able to state it.

A WAY TO REMEMBER IT

Ricinus is Latin for a sheep-tick, which the seed looks exactly like — mottled, swollen, oval. Communis means common.

What the tradition holds

Charaka names eranda taila the foremost dravya for vata, and it is described in the Bhavaprakasha Nighantu. That is what the tradition holds and where it is written down, not a finding about what the oil does in a body.

Constituents. The oil is largely ricinoleic acid, which is what makes it purgative. The seed additionally contains ricin, a toxin that remains in the pressed cake and does not pass into the oil.

What the evidence says

StatusTraditional use is extensive and long recorded. Modern clinical evidence is limited.
SuggestedHealth Canada publishes monographs covering Ayurvedic ingredients and permits specific traditional-use claims, which reflects a regulator accepting a documented tradition rather than a body of clinical trial evidence.
Not establishedThere is not enough good clinical evidence to establish an effect on any named health condition. Long traditional use is not a substitute for that evidence, and this library does not present it as one.
The honest gapPublished work on the oil is old and largely predates modern standards, and work on the seed concerns poisoning rather than treatment.

Safety

The seed is deadly and the oil is not, and the reason is that ricin stays behind in the pressing cake. A very small number of chewed seeds has killed adults and fewer has killed children — the seeds are mottled, attractive and are strung as beads, and poisoning of children who found them is recorded. Ricin has no antidote. The oil itself is a strong purgative: overuse causes fluid and salt loss, and it is contraindicated in pregnancy because it can bring on labour. Never use industrial-grade oil. Anyone on medication, pregnant, or managing a diagnosed condition should speak to a doctor or a qualified practitioner first.

Side effectsGriping and abdominal cramp
Diarrhoea
Nausea
ContraindicationsPregnancy — absolutely.
Intestinal obstruction, appendicitis, or undiagnosed abdominal pain.
Inflammatory bowel disease.
The seed itself, in any quantity, by any route.
InteractionsAny oral drug — purgation reduces absorption. Separate by at least two hours.
Diuretics — additive fluid and electrolyte loss.
Contraindicated in pregnancy in purgative quantity.
Pregnancy and breastfeedingNot to be used in pregnancy in any quantity. Not to be used while breastfeeding without a qualified practitioner.
The seed contains ricinRicin is among the most toxic substances known and has no antidote. A small number of chewed seeds has proved fatal to adults, fewer to children, and poisonings of children who found the attractive mottled seeds are recorded. Ricin does not pass into the pressed oil, which is why the oil is used and the seed never is. This distinction is the single most important thing in this entry.
It can bring on labourCastor oil has been used to induce labour and is contraindicated in pregnancy for that reason.

Growing it

ClimateTropical and subtropical; grows as a weed and as a field crop.
SoilWide range; well-drained ground.
PlantingGrown from seed as an annual or short-lived perennial.
HarvestCapsules are collected when ripe and the seed pressed for oil. The pressing cake, which holds the ricin, is not fed or eaten and is treated before use as manure.
What is not statedThis library has not verified region-specific spacing, variety and yield figures against a named agricultural authority for every growing country, and does not state them rather than guessing.

Grown as a crop: how to grow castor, from sowing to harvest, in Laisha's grow guides.

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What this is not

Sources

GBIF Backbone Taxonomy species-match record for Ricinus communis L.
Global Biodiversity Information Facility (GBIF) · read 2026-09-28
Confirming live, rather than from memory, the accepted botanical name and family behind the Sanskrit name.
https://api.gbif.org/v1/species/match?name=Ricinus%20communis
The Ayurvedic Pharmacopoeia of India — Eranda (Ricinus communis L.)
Pharmacopoeia Commission for Indian Medicine and Homoeopathy, Ministry of Ayush, Government of India · read 2026-09-28
The official Indian pharmacopoeial standing of the dravya and the identity of the part used as the pharmacopoeial article.
https://pcimh.gov.in/
Compendium of Monographs — Natural Health Products
Health Canada, Natural and Non-prescription Health Products Directorate · read 2026-09-28
A regulator outside India that publishes monographs covering Ayurvedic ingredients — used for the safety framing, and for the line between a permitted traditional-use claim and clinical evidence.
https://www.canada.ca/en/health-canada/services/drugs-health-products/natural-non-prescription/applications-submissions/product-licensing/compendium-monographs.html
Classical matra by dose form
Sharangadhara Samhita, Madhyama Khanda
The classical quantity for each dose form, as the standard reference gives it. Sharangadhara is where Ayurveda's dose forms and their measures are set out, and it is what every Dravyaguna textbook reproduces.
https://niimh.nic.in/ebooks/esharangadhara/
The Ayurvedic Pharmacopoeia of India, Part I - monograph for this dravya
Pharmacopoeia Commission for Indian Medicine and Homoeopathy, Ministry of Ayush, Government of India · read 2026-09-29
The pharmacopoeial identity of the article and the marker used to establish it.
https://pcimh.gov.in/
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