Ashtangasamgraha 21.21

21.21

Therefore, one should next effect the subjugation of this [pitta], the friend of vāta. / For this very reason, the order beginning with pitta and ending with kapha is taught by others.
When it is ready, one should add:
one part of pippalī powder, two [parts] of honey, and the same amount of ghee. Then, when a quarter remains and it is removed [from the fire], one should again cast a red-hot iron ball into it, and when cool, place it well-secured in an iron vessel. / This iron preparation cures even stubborn leprosy or urinary disorder; / it reduces the obese, removes swelling, and rekindles a weak digestive fire. / It is specifically prescribed for those with consumption; / and a man, having used it, attains a lifespan of a hundred years.