Vacha is one of the most potent herbs used for treatment purposes in Ayurveda and is commonly known as Sweet flag. It is found through out India. The plant is used to treat numerous diseases. Dr. Varun Ram Raj, the best Ayurveda Doctor in Asia, of Ayurvedatarian uses the herb Vacha for the treatment of diseases caused by the vitiation of Vata and Kapha doshas and also to promote Intelligence and memory. The herb is used in conditions like Hoarseness of voice, Epilepsy, Indigestion etc by Ayurvedatarian. Vaca contains Phytoconstituents like asaraldehyde , asarone, calamenol etc which aids in it’s vermifuge and sedative actions.

General aspects and geography

Botanical name : Acorus calamus

Family :  Araceae 

Habitat: All over India

Parts used

  • Rhizome

Classical categorization based on Ayurveda textbooks

Charaka Samhita – Arsoghna varga(Alleviate Haemorrhoids )

Susruta Samhita – Vachadi gana

Pharmacological action

  • Vermifuge 
  • Carminative 
  • Tranquilizer 
  • Sedative 

Medicinal property according to Ayurveda

  • Jwarahara (Antipyretic )
  • Kasahara (alleviate cough )
  • Visaghna (Antipoisonous )
  • Medhya (intellectual)

Therapeutic indications

  • Epilepsy (Apasmara )- Powder of Vaca is taken along with honey in Epilepsy 
  • Oedema (Sotha)- Paste of Vaca is applied on body part to alleviate Oedema.


Powder (curna)- 1 g

Decoction (Kwatha)- 50 ml

Tablet - 2 tablets twice daily or as per the advice of the Ayurveda doctor 

Note: Ayurveda medications must be taken only after consulting an Ayurveda doctor. 


  • Vacadi taila
  • Manasamitra vataka
  • Vacadi curna

Morphology :

A perennial herb. Stems are stout. Leaves are glabrous. Inflorescence is spadix. Fruits are turbinate.

Vernacular names of Vaca

English – Sweet flag

Hindi- Bach

Malayalam – Vayambu 

Sanskrit – Vaca 


  • Aruna
  • Lomasi 
  • Mangalya


Rasa- Katu(Acrid) Tikta (Bitter)

Guna-  Laghu (light)

Vipaka- Katu (Acrid)

Virya-  Ushna (hot)

Prabhava – Medhya (Intellectual)

वचोग्रगन्धा कटुका तिक्तोष्णा वान्तिवन्हिकृत्

विबन्धाध्मान शूलघ्नीशकृन्मूत्रविशोधनी ।।

(Bhavaprakasa Nighantu -Haritakyadi varga-shloka 103)

Vaca is Vata Kapha alleviating because of it’s properties like acrid taste and hot potency. The herb is used to treat diseases caused by Vata and Kapha doshas like Fever Oedema and Epilepsy etc. Ayurvedatarian lead by Varun Ram Raj,the best Ayurvedic doctor in India is currently conducting various researches based on ancient Ayurvedic textbooks, involving Vaca for preparing various combinations of medicines to alleviate conditions involving vitiation of Kapha and Vata and also to promote intelligence and memory. Reach Ayurvedatarian for better health management.

Frequently asked Questions

1)What are the uses of Vaca curna?

   Vaca curna is used effectively in Epilepsy.

2)What is the scientific name of Vaca?

Botanical name of Vaca is Acorus calamus


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