Herb in Thai notifiable formulas
Ajowan
เทียนเยาวพาณี · Thian Yaowaphani
Trachyspermum ammi (L.) Sprague
- Family
- Umbelliferae
- Part used
- fruit
- Crude drug
- Trachyspermi Ammi Fructus
- Other names
- Ajowan Fruit, Ajwain, King’s Caraway
- In the announcement
- Used in 14 notifiable formulas (3 as capsules)
Thai Herbal Pharmacopoeia (THP)
Constituents and quality criteria of Ajowan
Summarised from the Ajowan monograph of the Thai Herbal Pharmacopoeia, Department of Medical Sciences, the standard used to test the dried ripe fruit.
The pharmacopoeia sets no minimum marker content for this herb. Use the raw material quality criteria below for acceptance testing.
Constituents
Ajowan contains volatile oil, of which thymol, γ -terpinene and p -cymene are its major components. It also contains flavonoids, coumarins, proteins, etc.
Raw material quality criteria
| Foreign matter | Not more than 4.0% w/w |
| Total ash | Not more than 12.0% w/w |
| Acid-insoluble ash | Not more than 2.0% w/w |
| Ethanol-soluble extractive | Not less than 8.0% w/w |
| Volatile oil | Not less than 5.0% v/w |
Storage: Ajowan shall be kept in well-closed containers, preferably of metal or glass, protected from light and stored in a cool and dry place.
Source: Thai Herbal Pharmacopoeia, Department of Medical Sciences (online edition, accessed 21 October 2026)Read the full THP monograph
Formulas using Ajowan
14 formulas containing Ajowan
Select a formula to see its ingredients and indications. Formula names and indications are a reference translation; the Thai announcement is the legal text.
- Ya That Banchop Digestive element formula for bloating and loose stoolsRelieves abdominal bloating and flatulence; relieves abnormal stools due to disordered elements (utchara that phikan), diarrhea not caused by infection, e.g. stool without mucus or blood, and diarrhea without fever
- Ya Maha Chak Yai Traditional formula for lom sang and bloatingRelieves lom sang (a wind (lom) disorder associated with childhood sang), relieves abdominal bloating and flatulence
- Ya Kae Ritsiduang Chamuk Formula 1 Formula for nasal ritsiduang, Formula 1Relieves nasal ritsiduang (ritsiduang chamuk)
- Ya Hom Inthachak Fragrant formula for faintness and nauseaRelieves lom bat tha chit (a wind (lom) disorder affecting the mind), relieves nausea and vomiting, relieves wind (lom) causing abdominal colic/flatulent discomfort
- Ya Hom Inthachak Fragrant formula for faintness and nauseaRelieves lom bat tha chit (a wind (lom) disorder affecting the mind), relieves nausea and vomiting, relieves wind (lom) causing abdominal colic/flatulent discomfort
- Ya Hom Thep Chit Fragrant cordial formula for dizziness and palpitationsRelieves subtle wind (lom kong la-iat) causing symptoms such as dizziness, faintness (sawing sawai), palpitations, etc., and nourishes the mind (bamrung duang chit) so that it is refreshed
- Ya Kamlang Ratchasi Formula 2 Lion's strength blood and body tonic, Formula 2Blood tonic (bamrung lohit), body tonic
- Ya That Banchop Digestive element formula for bloating and loose stoolsRelieves abdominal bloating and flatulence; relieves abnormal stools due to disordered elements (utchara that phikan), diarrhea not caused by infection, e.g. stool without mucus or blood, and diarrhea without fever
- Ya That Banchop Digestive element formula for bloating and loose stoolsRelieves abdominal bloating and flatulence; relieves abnormal stools due to disordered elements (utchara that phikan), diarrhea not caused by infection, e.g. stool without mucus or blood, and diarrhea without fever
- Ya Hom Nawakot Fragrant nine-kot formula for dizziness and nauseaRelieves dizziness due to wind (lom wing wian), nausea and vomiting (wind causing tightness in the chest, lom chuk naen nai ok) in the elderly; relieves post-fever wind (lom plai khai) (after recovering from fever, symptoms remain such as nausea, dizziness, loss of appetite, abdominal bloating and fatigue)
- Ya Maha Chak Yai Traditional formula for lom sang and bloatingRelieves lom sang (a wind (lom) disorder associated with childhood sang), relieves abdominal bloating and flatulence
- Ya Hom Thipphaosot Divine-remedy fragrant formula for dizzinessRelieves dizziness due to wind (lom wing wian)
- Ya Kae Ritsiduang Chamuk Formula 1 Formula for nasal ritsiduang, Formula 1Relieves nasal ritsiduang (ritsiduang chamuk)
- Ya Suwannakesara Traditional pregnancy tonic formulaPregnancy tonic (bamrung khan); relieves fever during pregnancy (khai nai khan raksa)
Development potential
Develop Ajowan into a product with the TIBD group
In notifiable formulas14 formulasused in multi-herb formulas
THP raw-material criteria5 testsfor acceptance testing before production
Marker with a minimum contentNot setquality is checked with the raw-material criteria
Testing in the groupVISBIOVolatile compound analysis by GC-MS
Three ways forward 1Notify a listed formula2Adapt it through detailed notification3Develop a Category B herbal medicine or Category C health productSee the development pathway
VISBIO · laboratory in the TIBD group
Volatile compound analysis by GC-MS
Analytical testing of Ajowan raw materials and products by VISBIO, the laboratory in our group.
See the VISBIO serviceK-API · manufacturing in the groupExtract and manufacture at K-API
The TIBD group plant licensed by the Thai FDA to manufacture herbal products, so extraction and production stay within the group.
See the K-API plantTIBD · consultationPlan a product with Ajowan
We check whether your formula qualifies for notification, detailed notification or registration with the Thai FDA, then prepare the filing documents.
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