
Trachyspermum ammi
Also known as ajowan, bishop's weed, carom seed, Ethiopian cumin, Carom seeds, Yavani, Ajamoda, Dipyaka.
Trachyspermum ammi is an erect annual herb of the carrot family, grown as a spice and medicinal crop across Rajasthan, Gujarat, Madhya Pradesh, Uttar Pradesh and the Deccan, and originally from the eastern Mediterranean and Egypt. Its small ridged fruits, sold as ajwain, carry a sharp thyme-like aroma from their high thymol content. In Ayurveda the fruit, Yavani, is the household carminative, a hot, pungent, penetrating spice that kindles digestion, relieves colic and gas, dries kapha, and is given to new mothers in the weeks after birth.

Ask Herbert about Ajwain. Herbert is the master herbalist inside Bountiful Herbs: he answers from this plate and eleven hundred others, with dosing, pairing and cautions. Your first ten questions are free.
Ask HerbertGas, gurgling and a distended abdomen after meals in a cold vata patient who feels better after warm drinks and worse after raw or cold food
The new mother in the weeks after delivery with poor appetite, bloating and a sluggish bowel, who benefits from ajwain in warm water or in her food
A kapha patient with a heavy chest, thick white mucus and a stuffy head where a hot pungent seed opens the airways and dries the secretions
Crampy loose stools with undigested food in someone with a chilled digestive fire rather than an inflamed gut
Pregnancy: Avoid medicinal doses in pregnancy: no published safety class is known to us, the tradition treats the fruit as a uterine cleanser for the postpartum period rather than for pregnancy, and animal data suggest uterine stimulation at high doses; culinary amounts in food are acceptable.
The record lists 8 contraindications; open the plate in the library to read them in full.
The Ayurvedic practitioner reaches for Yavani when digestion is cold and stuck: the patient with gas, gurgling, distension and colic, the ama picture of undigested food, the sluggish appetite of a kapha or vata constitution.
Rasa: katu (pungent), tikta (bitter). Virya: ushna (heating). Vipaka: katu (pungent). Guna: laghu (light), ruksha (dry), tikshna (sharp). Dosha: pacifies vata and kapha; aggravates pitta. Karma: deepana (kindles digestion); pachana (digestive, ripens ama); anulomana (normalizes downward movement of vata); shulaprashamana (relieves colic); krimighna (anthelmintic and antimicrobial); kaphahara (reduces kapha); vatahara (pacifies vata); mutrala (diuretic); garbhashaya shodhana (cleanses the uterus after delivery); shukrahara (reduces semen in excess, a classical caution). Classical indications: agnimandya (weak digestion); ajirna (indigestion); adhmana (abdominal distension); shula (colic); gulma (abdominal lumps and gas masses); krimi (worms); atisara (diarrhea with ama); kasa and shvasa (cough and dyspnea); pratishyaya (cold and catarrh); hikka (hiccup); arsha (hemorrhoids); sutika roga (postpartum disorders). The dried fruit is chewed whole or given as churna with warm water, rock salt or buttermilk, decocted, distilled to Yavani arka, or steamed to yield the thymol-rich essential oil; it is a leading spice in postpartum diets and a standard ingredient of digestive churnas and carminative compounds. Classical formulations: Yavanyadi churna, Yavani shadava, Yavani arka, Hingvashtaka churna, Lavanabhaskara churna, Ajamodadi churna, Ajamodarka, Shankha vati. Described in: Charaka Samhita, Sushruta Samhita, Ashtanga Hridaya, Bhavaprakasha Nighantu, Dhanvantari Nighantu, Raja Nighantu, Kaiyadeva Nighantu, Ayurvedic Pharmacopoeia of India.
| Preparation | As written | Metric |
|---|---|---|
| Churna | 1-3 g powdered fruit after meals with warm water | 1000-3000 mg |
| Phanta (infusion) | 3-5 g crushed fruit steeped in 150 mL hot water, taken once or twice daily | 3000-5000 mg |
| Arka | 10-20 mL distilled ajwain water once or twice daily | 10-20 mL |
| Kwatha | 30-60 mL decoction twice daily | 30-60 mL |
| Essential oil, topical | 1-2 drops per 5 mL carrier oil, or one drop on a cotton pledget for toothache | 0.02-0.04 mL |
| Powder | Powder 1-3 g | 1000-3000 mg |
Doses are reproduced from the sources for practitioners and are not a recommendation for any person.
Overview. Trachyspermum ammi is an erect annual herb of the carrot family, grown as a spice and medicinal crop across Rajasthan, Gujarat, Madhya Pradesh, Uttar Pradesh and the Deccan, and originally from the eastern Mediterranean and Egypt. Its small ridged fruits, sold as ajwain, carry a sharp thyme-like aroma from their high thymol content. In Ayurveda the fruit, Yavani, is the household carminative, a hot, pungent, penetrating spice that kindles digestion, relieves colic and gas, dries kapha, and is given to new mothers in the weeks after birth.
Clinical Notes. Traditionally used in Ayurveda as Yavani Tridoshic in small doses but primarily balances Kapha and Vata, increases Pitta Abortifacient in traditional use Galactagogue but may reduce breast milk in excess
Clinical Notes. The Ayurvedic practitioner reaches for Yavani when digestion is cold and stuck: the patient with gas, gurgling, distension and colic, the ama picture of undigested food, the sluggish appetite of a kapha or vata constitution.
primary-actions. Ajwain acts primarily as: Carminative, Antispasmodic, Stimulant, Stomachic, Anthelmintic. Secondary actions include Antimicrobial, Antifungal, Antioxidant, Antihypertensive, Hepatoprotective, Bronchodilator.
Ajwain stands in 40 documented formulas in the library, among them Ayaskṛti, Karpūrāsava, Jīrakādyariṣṭa, Devadārvāriṣṭa, Mustakāriṣṭa, Mṛtasaṅjīvanī Surā.

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