7 Top Medicinal Uses & Side Effects Of Kalarchikai (Fever Nut)

kalarchikai medicinal uses

Kalarchikai is very important herb with wonderful medicinal uses and health benefits. It is very famous in Tamil Nadu for treating pcos (poly cystic ovarian syndrome), irregular periods, preventing cancer of many types including thyroid cancer and also for aiding weight loss especially caused due to pcos as it helps regulate estrogen levels. 

Kalarchikai Plant:

Kalarchikai plant is a large bush that grows upto 15 meters in height. This plant is found commonly throughout India and Srilanka. The plant is filled with thorns, this plant is found all over the edge of our farm and because it grows so thick and is filled with thorns, it acts as a natural protective fence for our farm. 

The flowers are yellow in color and the fruits (pods) are oval in shape and they are green in color when unripe and the they turn brown and split open revealing the seeds. What we see in the picture above is the unopened fruits and they will turn brown and split open revealing the seeds. The seeds are grey in color and usually fall off from the pods when they split.

The seed coat is thick and when opened with a hammer reveals a white kernel. Though all parts of the plant have medicinal uses, the white kernel is the most used part. When we were younger, we used to rub two seeds together till it gets hot and place it on others hands as a prank and that is why it is also called Sootu Kottai in Tamil.

Kalarchikai Botanical & Common Names:

The botanical name of kalarchikai is Caesalpinia Bonducella. It is called Gajga in Hindi, fever nut in English, Angarhavallari in Sanskrit, Gajjiga in Kannada, Kazhanchi in Malayalam, Mulluthige in Telugu, Katukaranja in Marathi and Gila in Oriya.

Kalarchikai Chemical Constituents:

The seeds contain some important chemical constituents like triterpenoids, flavonoids, glycosides, saponins, amino acids, tannins and alkaloids. Some of the amino acids found in the seed kernel are aspartic acid, lysine, glycine, leucine, histidine, isoleucine, serine, butyric acid, tyrosine, citrulline, etc. The important glycoside found in kalarchikai is bonducin. The fatty oil found in the kernel consists of stearic, palmitic, oleic, linolenic and linoceric acids. 

kalarchikai side effectsKalarchikai Traditional Uses:

Traditionally kalarchikai powder mixed along with pepper is consumed for treating indigestion and abdominal pain. The seed paste is used for treating many skin ailments and is especially used for treating problems like hydrocele. In certain branch of medicines, it is used for treating leprosy too.

The seed powder is a wonderful anthelmintic so it used traditionally to expel worms. Since the seeds have anti pyretic properties, they are used for treating fever especially malaria. The seeds are also used for treating gum problems including gum boils and inflammation. It is also taken for improving liver health and for treating liver disorders.

Kalarchikai has been traditionally used as a uterine stimulant and is extensively used for treating many problems that women regularly face including painful periods, poly cystic ovarian syndrome and also to cleanse the uterus. In our place, it is mainly used for treating pcos, cough and cold, indigestion and for treating skin problems.

Kalarchikai Medicinal Uses:

Along with the medicinal uses given below, kalarchikai has immunomodulatry, diuretic, anti fungal, anti filarial, adaptogenic and anxiolytic (reduces anxiety) properties. 

1. Anti Asthma:

Kalarchikai has anti asthma properties, it has been used for it from ancient times. Kalarchikai inhibits parameters that leads to asthma. Kalarchikai powder mixed with honey helps reduce asthma and this has been proven through research too. Though in the study ethanol extract was used, we can use the powder too.

2. Anti Diabetic Properties:

Kalarchikai has wonderful anti diabetic properties, traditionally many tribal people use the seed powder for reducing high blood sugar levels and this use has been proven through research.  Kalarchikai blocks glucose absorption thus reducing high blood sugar spikes. 

3. Anti Pyretic Properties:

Kalarchikai has been used for reducing fever and pain by many tribal people for a long time and this traditional use has been backed by research now. Consuming kalarchikai when we are having fever reduces both fever and body pain that is usually common during fevers. It also helps reduce inflammation effectively too. Here in our place, kalarchikai is used extensively for treating malaria.

4. Anti Bacterial Properties:

Kalarchikai is widely used for treating many types of skin diseases including boils and wounds. This is due to it’s wonderful anti bacterial properties. Kalarchikai decoction made by mixing kalarchikai powder in water can be used as a gargle for treating gum diseases including gum inflammation and boils.

5. For Pcos (Antiestrogenic Properties): 

Kalarchikai is very famous in Tamil Nadu for treating pcos (poly cystic ovarian syndrome) and though it has many other uses, it is mainly used for treating pcos and its many side effects including irregular periods and also for aiding weight loss. This because it reduces estrogen levels which is usually elevated in people who are suffering from poly cystic ovarian syndrome. It does it by inhibiting estrogen secretion and you can read the study that proves it here.

6. Anthelmintic Properties:

The leaves also have medicinal uses and one of it’s uses is expelling worms. Traditionally in village sides, we consume neem extract for expelling worms but many consume other herbs like kalarchikai powder extract also for expelling worms. You can read the study that supports this claim here.

7. Anti Diarrhoeal Properties:

The leaf extract have powerful anti diarrhoeal properties and has been traditionally used for it by many tribes till today. This is due to it’s wonderful anti bacterial properties. The water extract of the leaves are given for treating diarrhoea and it is very very effective. Here is the link that supports this claim, though in the study methanol and ethyl acetate is used, water extract is also very effective.

8. Anti Cancer Properties:

Another amazing uses of kalarchikai plant leaves is the anti tumour properties. In a study done on rats with carcinoma, there was significant reduction in tumour size, tumour cell volume and tumour cell count when given Kalarchikai extract. And the best part is there was no toxicity till the dosage of 300 mg per kg.

kalarchikai for weight lossKalarchikai Side Effects:

Kalachikai is best avoided completely during pregnancy and also while breast feeding. Though it is a safe herb, it is best to take it in the suggested dosage.

Kalarchikai Dosage:

Usually the common suggested dosage for the seed powder is 1/4 tsp but it is best to consult an Ayurvedic physician for the correct dosage especially if you are planning to take it for long durations of time.

Where To Buy Kalarchikai?

We can get kalarchikai during certain seasons in nattu marundhu kadai (country drug store that sell herbs). We can order kalarchikai powder easily online too. 

3 Top Ways To Use Kalarchikai:

1. Kalarchikai Powder For Pcos:

For making kalarchikai powder, break the kalarchikai seeds using a hammer and you will find a white kernel inside. Now collect the kernels and sun dry till crisp and then powder along with black pepper in 1: 3 ratio and store. To use, mix 1/4 tsp kalarchikai powder with honey and make small balls. Take one ball each per day.

2. Kalarchikai For Skin Problems:

Make the powder as said before but powder without the peppercorns and store. To use, take little bit of the powder, mix with water and apply on the affected area. The inflammation will reduce very very quickly.

3. Kalarchikai For Periods Pain & Irregular Periods:

Due it’s antiestrogenic properties and anti spasmodic properties, kalarchikai is wonderful for reducing periods pain and also in regularising irregular periods. For both these problems make the powder with pepper like said before. Mix 1/4 tsp of the powder with water and consume.

kalarchikai for pcos



  1. Lakshmi Durga
    January 26, 2022 / 12:25 pm

    Hi Ramya,ratio of the fever nut and pepper is 1:3 means 1 but with 3 proper corns?

    • Ramya (Wildturmeric)
      January 31, 2022 / 1:11 pm

      No, it is 1 tsp black pepper for 3 tsp kalarchikai powder, if it too spicy, you can reduce the amount of black pepper a bit…..

  2. Lakshmidurga
    January 31, 2022 / 1:16 pm

    Thank you so much ramya 😊

  3. Prasanthi
    February 2, 2022 / 9:15 pm

    HI Ramya ,

    If the tsp Ratio 1(pepper):3(kalarchikai) , If so kalarchikai induces heat as well ? , Please suggest

  4. Sangavai Ganesan
    February 27, 2022 / 5:28 am

    Hi Ramya,

    This message finds you well. Recently I came across your blog and youtube videos while I am searching for Kalarchikai use for irregular periods. Though the post was helpful, I really would like to see videos demonstrating the making of powder and taking it with honey.
    The powder is exceptionally bitter which makes me nauseous but for my condition I would like go use this but with a video demo, I would go way longer to make use of this powder.

    Many wishes for you in touching lives and bringing shine through home remedies.


  5. Ramya (Wildturmeric)
    March 4, 2022 / 10:19 am

    Hi Sangavi, when you are taking any herbal powders, make sure to start with a low dosage and increase to the suggested dosage over time, this way you can prevent all the side effects you are experiencing….

  6. Gayatri
    September 2, 2022 / 6:40 am

    I am started consuming last 10 days….Can I continue during periods too

  7. Rachitha
    May 30, 2023 / 1:18 am

    I madam i am taking kalachikai it from 19/5/23 and 22/5/23
    From then I am having lose motion
    And stomach pain, and good weight loss
    Kalachikai side effects
    Please suggest me

  8. K Ramadurai
    July 1, 2023 / 11:22 pm

    How far kalachikai useful for a diabetic. Can I take it. If ok please advise dosage and time

  9. Sathy
    July 13, 2023 / 8:18 pm

    Hi ramya.. I have taken kalarchikai for irregular periods .for one mandalam 48 days Can I consume for more days

  10. Sandhya
    August 9, 2023 / 11:01 pm

    Hi kalarchikai is very good. It should be used direct powder also best. But daily u can break the green shell white seed you can see that you again break in small pods with 5peppercons this is the correct ratio. You want to consume in empty stomach with water. There is no exact timing but you can take this up to your problem cure.

  11. Syedirfan
    September 28, 2023 / 10:05 pm

    Can u please suggest kalarchikai is good for pcod with medicinal treatment consuming tablets daily

  12. Lakshmi
    October 27, 2023 / 3:28 am

    Hello all,
    I have fibroids. So, Homeopathy Doctor suggested me to take kalarchikkai powder or kalarchikkai capsule (bought in Amazon) daily morning before food for 48 days. I don’t have any side effects while taking it in the capsule form.

  13. Senthilkumar
    December 26, 2023 / 7:19 pm

    Madam, did you get cure from fibroids. Please reply me or text me 9944495143. My sister having fibroids. Kindly help me

  14. Jaasvika
    January 4, 2024 / 12:27 pm

    Hi im using kalarchikai powder for irregular perdious still im not getting i starred this to consume from 1 months how many days i have to use this to get regular peridos?

  15. farad bsr
    January 9, 2024 / 3:50 pm

    Its very effective herb for Pulpitation ,Orchitis and Blader problems ….

  16. Saranya
    March 27, 2024 / 11:21 am

    While trying to get conceive is it prescribable to take a kalarchikai powder to cure pcod

    June 19, 2024 / 7:05 pm

    Hello mam ,
    my mother has Endometrial polyps in uterus , doctors refuse to do surgery because of her other several health issues and her polyps grows 9cm . So can I feed her fevernut powder for prevention of cancer disease for my mom , please suggest me the Ratio and guidance to giver her this ayurvedic powder

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