कुक्कुटाण्डत्वक्
From Domestic hen, Gallus gallus domesticus
Jangama · animal origin
TRADITIONAL VIEW, WITH SAFETY LIMITS
Hindi name: Ande ka chhilka
What the texts say Kukkutandatvak does
What the evidence says. Egg shell calcium has been studied as a calcium source. No classical claim beyond that is established.
Side effects and limits
Calcium carbonate. Raw egg shell carries Salmonella risk, which is what the calcination removes.
Avoid or ask first: Hypercalcaemia.; Egg allergy — the membrane carries egg protein.; Uncalcined material.
A traditional classification, not a recommendation. The full safety record is below.
AS THE CLASSICAL TEXTS AND THE API PRESCRIBE
| Bhasma | 125–250 mg |
| Anupana | Madhu · Dugdha |
| Kala | Adhobhakta |
A sudha varga dravya — the calcium-bearing group — used where a calcium source is wanted.
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.
| Rasa | MadhuraKashaya |
| Guna | LaghuRuksha |
| Virya | Sheeta |
| Vipaka | Madhura |
| Doshakarma | Pittahara and kaphahara. |
| Upayukta anga | Kukkutandatvak bhasma |
Kukkutandatvak is classed among the jangama dravya.
| English | Hen's egg shell |
| Hindi | Ande ka chhilka |
| Kannada | Motte sippe |
Rasa, guna, virya, vipaka and karma are recorded as the classical texts give them, with the text and section named so a student can open the book and check.
Any shell powder can be sold as it. The membrane is classically retained in some preparations and removed in others.
From Domestic hen, Gallus gallus domesticus. The shell, and the shell membrane.
A WAY TO REMEMBER IT
Kukkuta-anda-tvak is cock-egg-skin, three plain words stacked. Kukkuta is onomatopoeic — it is the bird named for the sound it makes, as cock is in English.
One of the sudha varga, used in asthi and danta conditions and in daha.
Constituents. A product of Domestic hen, Gallus gallus domesticus.
| Status | Egg shell calcium has been studied as a calcium source. No classical claim beyond that is established. |
| The honest gap | Mineral and animal dravya are far less studied than plant dravya, and what study exists is chiefly characterisation and toxicology rather than clinical efficacy. |
Calcium carbonate. Raw egg shell carries Salmonella risk, which is what the calcination removes.
| Contraindications | Hypercalcaemia. Egg allergy — the membrane carries egg protein. Uncalcined material. |
| Interactions | Tetracyclines, fluoroquinolones, levothyroxine and bisphosphonates — calcium binds them. Separate by two hours. Calcium supplements — additive load. |
| Pregnancy and breastfeeding | Calcium is unremarkable in pregnancy; this specific preparation is not characterised. |