Rasaratnākara (Rasāyanakhaṇḍa)

Take three niṣka of dead sharp-iron, muṇḍa pig iron, or kānta iron. (36) Drink with warm milk to arrest aging in men. (37) By use for two years, one lives as long as the moon and stars. (38) In a properly made kānta vessel, soak one pala of dhātrī powder Emblica officinalis with śivāmbu alkaline water at night. (39) Eat it in the morning after waking; freed from gray hair and wrinkles, one becomes a conqueror of death within a year. (40) Coat one pala of triphalā with honey inside a kānta vessel. (41) Drink it after it stands for a day and night, measured with śivāmbu. (42) It destroys death and old age within a year and one lives for three hundred years. (43) "Om haḥ, to the nectar, nectar-power, nectar-dwelling, accomplished, moon-nectar, commanded, do it, do it, hail, he he haṃ haḥ, gaṃ." This is the mantra for consuming sulfur and iron.

For all iron formulas, drink milk afterward. (44) Taste the juice of nutgrass mustā squeezed by the teeth. (45) Eat the roots of those for the relief of bad taste in the mouth. (46) If the bowels are bound and the fire is sharp, drink that milk always. (47) Avoid bathing, rubbing, and sharp or hot foods if there is obstruction. (48) Eat betel leaf always, mixed with camphor, again and again. (49) When digested well and the fire is sharp, drink afterward when hungry. (50) Consumed milk and then food should be followed in iron alchemy.

The Brahmavṛkṣa Brahma-tree Formula

The five parts of the Brahmavṛkṣa Butea monosperma, shade-dried and finely powdered. (51) Lick one karṣa with honey and clarified butter to conquer old age within a year. (52) One lives for five to seven cycles, divinely radiant and greatly strong. (53) Take flowers of the Brahmavṛkṣa and dry them in the shade. (54) Thirty pala of that powder and twenty-four pala of clarified butter; (55) mix them together and place in a vessel; seal it and place it in a heap of grain. (56) After a month, extract it and make fourteen parts.