Da Huan Dan，*Comprehensive Collection of Proven Formulas for Internal and Surgical Diseases*.，
Da Huan Dan
Formulas Name : Da Huan Dan
Chinese Name : 大还丹
Drug Formulation
Epimedium (trim off the edge hairs, stir-fried in mutton fat) 10 liang, Rehmannia (soaked in wine, steamed 9 times and sun-dried 9 times) 12 liang, Rosa laevigata (remove the central hairs, soaked in wine) 8 liang, Cuscuta (soaked in wine) 8 liang, Curculigo (soaked in wine) 8 liang, Angelica sinensis (soaked in wine) 6 liang, Dendrobium (soaked in wine) 6 liang,Dodder Seed (washed with wine) 5 liang, Ophiopogon (core removed, stir-fried) 4 liang 2 qian, White Chrysanthemum 4 liang 2 qian, Eucommia (stir-fried in salt water) 4 liang, Cistanche (washed with wine, tendons and membranes removed, dried in an oven) 4 liang, Cornus Fruit (soaked in wine) 4 liang,Goji berries (soaked in wine) 4 liang, Suoyang (soaked in wine) 4 liang, genuine Chinese yam (roasted) 4 liang, white tribulus (roasted in a clay pot) 4 liang, Sha Yuan tribulus (roasted) 4 liang, Dipsacus (roasted) 3 liang 2 qian, rock salt 3 liang 2 qian, Morinda root (washed in wine) 3 liang,White Poria 3 liang, Peony Bark (roasted) 3 liang, Fennel Seeds (soaked in wine) 3 liang, Paper Mulberry Seeds (soaked in wine) 3 liang, Rubus Fruit (soaked in wine) 3 liang, Huai Achyranthes (soaked in wine) 3 liang, Polygala Root (roasted with licorice water) 3 liang, Alisma (roasted) 3 liang,Acorus tatarinowii (roasted) 3 liang, Asparagus root (sun-dried) 2 liang 1 qian, Schisandra chinensis (roasted) 2 liang, Fenugreek (soaked in wine) 2 liang, Walnut kernels 1 jin (also known as hu tao), Pork kidneys 12 pieces, Mutton kidneys 12 pieces.
Source
*Comprehensive Collection of Proven Formulas for Internal and Surgical Diseases*.
Processing
Grind each of the above herbs into a fine powder. Slice open the kidneys and stuff them with the powder until full—it is not necessary to fill them completely. Tie them securely with hemp rope, place them in a steamer, and steam until cooked. Dry them in the sun, then pound them together with the powder into a fine powder. Melt 6–7 jin of white honey and mix it with the powder to form pills the size of a Paulownia seed.
Instructions for Use
Take 2–3 qian each morning and evening, washed down with lightly salted water.
Da Huan Dan,