धातकी
Woodfordia fruticosa (L.) Kurz
Lythraceae · Woodfordia
TRADITIONAL VIEW, WITH SAFETY LIMITS
Hindi name: Dhai phool
What the texts say Dhataki does
What the evidence says. Traditional use is long recorded. Modern clinical evidence is limited.
Side effects and limits
A flower in very long and very wide use, including as the fermenting agent in preparations taken over months. No significant toxicity is recorded. Anyone pregnant, on medication or managing a diagnosed condition should speak to a doctor or a qualified practitioner first.
Avoid or ask first: No absolute contraindication is documented here. This is written deliberately rather than left blank.
A traditional classification, not a recommendation. The full safety record is below.
A Samhita can only be read forwards, from the group to its members. This is the same list read backwards.
AS THE CLASSICAL TEXTS AND THE API PRESCRIBE
| Churna | 1–3 g |
| Anupana | Ushnodaka · Takra |
| Kala | Adhobhakta |
As a grahi drug. As a fermenting agent the quantity is set by the Sandhana Kalpana method, not by a clinical matra.
Reported from Sharangadhara Samhita and the Ayurvedic Pharmacopoeia of India. Laisha states what the texts prescribe; it does not recommend. No quantity here is adjusted for a particular person — not for agni, koshtha, bala, age, pregnancy, kidney or liver function, or anything already being taken.
Ayurvedic Pharmacopoeia of India, Part I
| Marker | Identity precedes any assay |
| Assay | |
| Total ash | |
| Acid-insoluble ash | |
| Alcohol-soluble extractive | |
| Water-soluble extractive | |
| Foreign matter |
Woodfordia fruticosa flower. The article is unambiguous botanically; the failure is age, because the wild yeast it is bought for dies in storage.
These are the marker and the identity test for this dravya, and they are not a test Laisha has run on anything. Laisha does not state the numeric limits here: the assay, ash and extractive figures must be read from the current edition of the Ayurvedic Pharmacopoeia of India, because a wrong limit printed here is a number a laboratory would act on. The entries in this library that DO carry figures carry them because each one was checked.
| Rasa | KashayaTikta |
| Guna | LaghuRuksha |
| Virya | Sheeta |
| Vipaka | Katu |
| Prabhava | Its real prabhava is pharmaceutical rather than clinical: the flower carries the wild yeast that ferments every classical asava and arishta, and Sharangadhara specifies it for that purpose. |
| Doshakarma | Kaphapittahara. |
Kashaya and tikta with sheeta virya and katu vipaka — a cooling astringent, which is what makes it both a grahi drug and a safe fermenting agent.
These are the actions the classical texts record. They are statements about what the tradition holds, and this library does not restate them as findings about a human body.
| Upayukta anga | Pushpa (the dried flower) |
| Why it matters | The dried flower, and nothing else. It is the standard source of wild yeast for every asava and arishta, which is why it is the most quietly important dravya in a pharmacy. |
Tamrapushpi, copper-flowered, is the recognition character: the dried flower is a deep brick red.
| English | Fire flame bush |
| Hindi | Dhai phool |
| Kannada | Tamrapushpi |
| Tamil | Velakkai |
| Telugu | Aare puvvu |
| Malayalam | Thathiri |
| Marathi | Dhayati |
| Gujarati | Dhavdi |
| Bengali | Dhaiphul |
| Odia | Dhatuki |
| Urdu | Dhawa |
| Ashokarishta | The fermenting agent, and an active dravya. |
| Dashamularishta | The fermenting agent. |
| Kutajarishta | The fermenting agent. |
| Pushyanuga Churna | An ingredient. |
The flowers of Grislea tomentosa are the same plant under an old name rather than an adulterant. The real problem is age: the wild yeast the flower carries dies with storage, so an old sample looks correct, passes every identity test, and simply will not ferment. That is a failure no pharmacopoeial standard for identity would catch.
Woodfordia fruticosa is unambiguous and has no serious botanical rival in the market, which is unusual for a dravya this heavily traded.
A WAY TO REMEMBER IT
Woodfordia honours E. J. A. Woodford. Fruticosa means shrubby. The flower is what turns a decoction into an arishta without a brewer, and every pharmacy runs on it.
Dhataki is named in five of Charaka's mahakashaya and is specified by Sharangadhara as the fermenting agent of the asava and arishta preparations. That is what the tradition records and where it is set down.
| Status | Traditional use is long recorded. Modern clinical evidence is limited. |
| Suggested | The dravya holds a pharmacopoeial monograph in India, which records an accepted identity and quality standard for the article. That is a standard for the material, not evidence of an effect in a body. |
| Not established | There is not enough good clinical evidence to establish an effect on any named health condition. Long traditional use is not a substitute for that evidence, and this library does not present it as one. |
| The honest gap | Published work on this dravya rarely records the origin or the standard of the material tested, so results cannot be attributed to a defined article. |
A flower in very long and very wide use, including as the fermenting agent in preparations taken over months. No significant toxicity is recorded. Anyone pregnant, on medication or managing a diagnosed condition should speak to a doctor or a qualified practitioner first.
| Contraindications | No absolute contraindication is documented here. This is written deliberately rather than left blank. |
| Interactions | No specific drug interaction is documented for this dravya. That is the honest state of the evidence, not a statement that none exists — most Ayurvedic dravya have never been studied for interaction with modern medicines at all. |
| Pregnancy and breastfeeding | Dhataki is an ingredient of Ashokarishta, which is used in classical obstetric and gynaecological practice, and no specific harm is documented. Formal safety in pregnancy has not been established. |