Bishop’s Weed – Ajwain Benefits, Usage, Side Effects

Bishop’s weed or Oma is called as Yavani in Ayurveda. It is a famous Indian spice. Commonly available throughout India. It is used extensively in digestive diseases.

Family – Umbelliferae
Botanical name – Carum copticum / Trachyspermum ammi
Yavani - Bishop's weed
Hindi name – Ajavan, Ajwain, Ajvain
Telugu name – Vamu
Gujarathi name – Ajamo
Punjabi name – Jabain
Kannada name – Oma, omada kalu
Malayalama name – Omam
Tamil name – Amam
Arabbi name – Kyunulmuluki
Farsi name – Nanakhaha
English name – Bishop’s weed

Sanskrit Synonyms: Ajamodika, Deepyaka, Bhutika, yavanaka, Brahmadarbha, Yavasahva, Deepai, Bhumikadambaka, Teevragandha, Yavagraja

Classical categorization of Ajvain
Charaka Samhita – Shulaprashamana – herbs that relieve colic pain
Distribution: It is cultivated extensively throughout India.

Bishop’s weed – medicinal qualities:
Guna (qualities) – Laghu (light to digest), Rooksha (dry), Teekshna (piercing, enters deep tissues)
Rasa (Taste) – Katu (pungent), Tikta (bitter)
Vipaka (taste conversion after digestion) – Katu (pungent)
Veerya (potency) – Ushna (hot)
Effect on Tridosha – Kaphavatahara – balances Kapha and Vata, increases Pitta.

Yavani benefits:
Bishop's weed - Oma
Pachani – digestive
Ruchya – improves taste
Deepani – improves digestion strength
Shukrahara – decreases semen
Shulahara – useful in abdominal colic pain
Useful in the treatment of
Udara – ascites
Anaha – bloating
Gulma – Abdominal tumor, bloating
Pleeha – splenomegaly
Krumi – worm infestation
Vishamaya – toxic conditions, poisoning
Shula – abdominal colic pain

Oma side effects:
It is best to avoid oma in people with oligospermia / male infertility.

Part used: Fruits
Fruit powder – 1 – 3 grams
Oil – 1 – 3 drops
Distillate (Ajamoda arka) – 5 – 10 drops

Ayurvedic medicines:
Yavani Shadava Churna – useful in indigestion, anorexia, haemorrhage, etc
Sarpagandha Ghan Vati – useful in insomnia, high BP etc.
Lohasava – useful in anemia, fistula, liver and spleen related disorders.

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  1. pradeep kumar says:

    Omam is known as ‘AYAMODAKAM’ in Malayalam

  2. Subodh says:


    I have purchased Gokul pitta tea. The ingredients are Liquorice ,Aniseed, Rose Petals, Bishop weed, Cinnamon, Coriander, Ginger.

    There are some ingredients like Bishop weed and Ginger which are pitta increasing. Why are these ingredients added in pitta tea.

    • Dr J V Hebbar MD(Ayu) says:

      One logical explanation is, they help to correct Pitta. (rather than balancing Pitta). Correction of Pitta means, correcting digestion strength (Agni). Hence the said ingredients.
      But ideally, Pitta tea, by its definition should contain only those ingredients which calm down Pitta.

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