Kāsamarda
Do not self-treat with Kāsamarda
Practitioner-prepared only. It should be watched by a trained Ayurvedic practitioner who works with your doctor.
If this is an emergency
Some reactions to Kāsamarda need urgent care. Call your local emergency number or go to an emergency department straight away — do not wait to see whether it passes.
Who should avoid Kāsamarda?
- Do not use if you are pregnant, since laxative herbs can trigger contractions and the plant's safety in pregnancy is unknown
- Do not use if you are breastfeeding, because the compounds may pass into breast milk
- Do not use if you have any liver disease, including hepatitis (liver inflammation) or a fatty liver
- Do not use if you have a kidney problem, as fluid and salt loss can make it worse
- Do not use if you take a statin (a cholesterol medicine), because both can break down muscle tissue
- Do not use if you take digoxin, a water tablet (diuretic) or steroid tablets, as low potassium (a blood salt) can cause dangerous heart rhythms
- Do not use if you take a blood thinner such as warfarin without your doctor's agreement
- Do not use if you have inflammatory bowel disease, a bowel blockage or unexplained stomach pain
- Never give Kāsamarda to a child; children have died after eating the seeds of this plant
- Never eat the seeds or drink roasted seed 'coffee' made from this plant, in any amount
- Do not use if you drink alcohol heavily, because the liver risk adds up
When should you see a doctor?
Stop taking it and get medical help the same day if you notice yellowing of your skin or the whites of your eyes, dark or cola-coloured urine, severe tummy pain, vomiting that will not stop, or deep tiredness.
Go to an emergency department now if you have muscle pain with weakness, cannot pass urine, have a racing or irregular heartbeat, become confused, or have a fit.
Call emergency services straight away if a child has swallowed any part of this plant, especially the seeds, even if the child looks well. Take the plant or product with you so staff can see what it is.
Also see your doctor for a cough lasting more than three weeks, a cough with blood, or a fever that will not settle, instead of treating it yourself.
- What it is: Kāsamarda is the Ayurvedic leaf medicine from Senna occidentalis, or Coffee senna, used traditionally for cough, skin problems and constipation.
- Active ingredients: Anthraquinones such as emodin and chrysophanol, Flavonoids, Tannins, Toxic dianthrone compounds in the seed
- Side effects: Common loose stools and cramps; rare but serious liver damage and muscle breakdown, with deaths reported after seed poisoning.
- Pregnancy & breastfeeding: Avoid in pregnancy and while breastfeeding.
Educational information, not medical advice — ask your doctor or midwife.
What is Kāsamarda?
Kāsamarda is an Ayurvedic medicine made from one herb. It uses the leaves of Senna occidentalis, also called Coffee senna. The name means roughly "cough crusher".
Healers used the leaf for coughs, chest congestion, skin problems and a slow bowel.
The plant is a common weed in India, Africa and the Americas. In Ayurveda only the leaf is used as medicine, and sometimes the root. The seeds are a different matter.
The seeds are poisonous. Roasted seeds are sold as a "coffee" swap. These have been linked to serious illness.
Here is the honest evidence picture. No human trials have tested Kāsamarda leaf for cough, or for anything else. So its benefits stay unproven.
Long traditional use tells you that people trusted a plant. It does not tell you the plant works, or that it is safe. This page does not repeat that point later.
Most human data on this plant is harm data. In north India, children fell badly ill in outbreaks traced to eating the seeds. They had liver and muscle damage, and some died.
Treat Kāsamarda as a high-risk plant, not a household herb.
How does Kāsamarda work?
Nobody has shown in people how Kāsamarda works, or that it works at all.
The leaf holds anthraquinones. These are plant chemicals that irritate the bowel lining and pull water into the gut. That is likely why folk use includes constipation.
It also explains the loose stools and cramps that people report.
Lab dish and animal studies hint that the leaf extract can slow the growth of some bacteria and fungi. It may also calm inflammation (swelling and irritation).
Lab and animal results often fail to repeat in people. Treat these findings as clues only.
For cough, the old explanation is Ayurvedic, not chemical. The leaf is called bitter and warming. It is said to clear kapha (the body's thick, phlegm-like quality).
No modern study has tested that idea.
The harm side has a clearer story. The seeds hold compounds thought to poison mitochondria. These are the tiny power plants inside muscle and liver cells.
That fits the poisoning seen in children and in grazing animals: muscle breakdown, liver failure and brain swelling.
What forms does Kāsamarda come in?
Traditional Ayurvedic recipes use the fresh or dried leaf:
- Fresh leaf juice (svarasa), taken by the spoonful - Leaf decoction (kvatha), simmered in water - Dried leaf powder (churna) - Leaf paste put on the skin - Root decoction, used less often
Capsules and tinctures are sold, but they are rarely standardised. So the amount of active material is unknown.
Avoid anything made from the seeds. Roasted seed "coffee" and seed powders have been tied to poisoning. Do not swallow them.
Where it comes from:
Kāsamarda shows up in classic Ayurvedic texts, such as the Bhāvaprakāśa Nighaṇṭu. It is listed among herbs for kāsa (cough) and skin disease.
Village and folk healers in India, West Africa and the Caribbean used the same plant. They gave it for fevers, worms and constipation.
It is a known staple of the Ayurvedic single-herb tradition. That is a fact about history, not about proof.
What does Kāsamarda help with?
- Cough and chest congestion: This is the use the name comes from, and it is the use with the least modern support. No human trial has tested Kāsamarda leaf for cough. If a cough lasts more than three weeks, brings up blood, or comes with breathlessness, see a doctor rather than self-treating.
- Constipation: The leaf contains anthraquinones, which are the same family of chemicals that make other senna plants laxative. A loosening effect is plausible and is reported by users, but no trial has measured it for this species. Safer, well-tested laxatives are easy to get.
- Skin complaints such as ringworm and itchy rashes: Leaf paste is a long-standing folk application for fungal patches and itching. Laboratory work shows some activity against fungi and bacteria in a dish. That has not been repeated in a human trial, and broken or infected skin needs proper assessment.
- Fever: Traditional texts list Kāsamarda among cooling, fever-clearing herbs. There is no human evidence for this. A fever above 39C, a fever with a stiff neck or rash, or any fever in a baby needs urgent medical care.
- Intestinal worms: Folk use includes worm expulsion, likely helped by the laxative effect. No human trial supports it. Modern anti-worm tablets are cheap, tested and far safer than a plant with documented liver toxicity.
What are the side effects of Kāsamarda?
- Loose stools, cramping and stomach pain
- Nausea and vomiting
- Liver injury, which can show as yellow skin or eyes, dark urine and deep tiredness
- Muscle pain, weakness and dark brown urine from rhabdomyolysis (muscle tissue breaking down)
- Low potassium (a blood salt your heart and muscles need) after repeated laxative use
- Fast or uneven heartbeat, usually linked to low potassium
- Confusion, sleepiness or fits after seed poisoning
- Skin rash or allergic reaction
Good to know:
Mild bowel upset is the most likely day-to-day effect of the leaf.
The serious effects are liver failure and muscle breakdown. These are rare but real. They have mostly followed eating the seeds, with some deaths in children in India.
Animals that graze on this plant get the same pattern of muscle and liver damage. Vets have written this up well.
The dose that harms people is not known. So treat any yellow skin, dark urine or odd muscle weakness as an emergency.
Options to discuss with a clinician
If you want a gentler option for a cough, there are a few to raise with a clinician. Honey in warm water, ginger tea, or steam inhalation are mild home measures. Ayurveda also uses Vasa and Tulsi for cough, and a trained practitioner can say whether they suit you.
For itchy or irritated skin, plain moisturisers and gentle washes are low-risk choices to ask about. Bring any of these ideas to your doctor first, along with a list of your current medicines. Your doctor can also check whether the cough or rash needs treatment in its own right.
Graded pages for the options named above:
- Steam Inhalation — evidence grade C, traditional tier T3
- Ginger — evidence grade A, traditional tier T3
- Honey — evidence grade A, traditional tier T3
Review status
This page has not been signed off by a pharmacist and is not published. It is shown here for a policy decision only.