治血虚火盛，吐衄妄行，溺血便血。
犀角镑末 生地黄 白芍药 牡丹皮（各一钱五分） 水煎去渣，入犀角末服之，如
忿怒致血者，加山栀、柴胡。
凡禀阴气至纯者，莫过于犀角，得浊阴下降者，莫过于地黄，白芍酸收，丹皮清降
凉血止血之要品，泻南实北之神方也。因于怒者，气必逆上，故加山栀以屈曲下行；肝
喜疏泄，故加柴胡以达其木郁。本用四味独名犀角地黄者，所重在二味，白芍、丹皮不过佐助耳。
治气血虚热，面赤烦渴，脉大而虚。
黄 （炙，一两） 当归（酒洗，二钱） 水煎，空心服之。
东垣曰∶《经》云脉虚血虚；又云∶血虚发热。此多得于饥饱劳役，症类白虎，惟
脉不长实为辨耳，误服白虎汤必死。黄 乃甘温补气之剂，此本血虚，何反用之为君
耶？《经》曰∶治病必求于本；又曰∶阳生阴长，故血虚补气，治其本也。佐以当归之
润，正与阴血相投，二物并行，则上下表里，无处不到，故名补血汤。
治卒暴吐血。
藕节（七个） 荷叶顶（七个） 同蜜擂细，水
煎去滓，温服。
治思虑伤心，吐血衄血。
人参（五钱） 远志（去心，甘草水煮） 白芍药 天门冬（去心） 麦冬门（去心）
黄 藕节 阿胶（蛤粉炒） 没药 当归 生地黄（各一两） 甘草（炙，五钱） 每
服四钱，姜水煎温服。
Treats blood deficiency with flourishing fire, causing hematemesis (vomiting blood), epistaxis (nosebleed) to run wild, hematuria (blood in urine), and hematochezia (blood in stool).
Rhinoceros Horn (sliced into fine powder) [Shuixi], Raw Rehmannia Root [Sheng Dihuang], White Peony Root [Baishao], Moutan Cortex [Mudanpi] (each 1.5 qian). Decoct in water, remove the dregs, and take with the Rhinoceros Horn powder. If the bleeding is caused by anger, add Gardenia Fruit [Shanzhi] and Bupleurum Root [Chaihu].
Among substances endowed with pure Yin qi, none surpasses Rhinoceros Horn; among those that cause turbid Yin to descend, none surpasses Rehmannia Root. White Peony Root is sour and astringent, while Moutan Cortex clears and descends; they are essential herbs for cooling blood and stopping bleeding. This is a divine formula for draining the South (Heart Fire) and filling the North (Kidney Water). When caused by anger, Qi must reverse and ascend; thus, Gardenia is added to bend the Qi downward. The Liver prefers free flow and discharge; thus, Bupleurum is added to unblock the stagnation of Wood. Although this prescription uses only four ingredients, it is uniquely named "Rhinoceros-Horn Rehmannia Decoction" because the emphasis lies on the two main ingredients (Rhinoceros Horn and Rehmannia), while White Peony and Moutan merely serve as assistants.
Treats Qi and Blood deficiency with internal heat, presenting with a red face, vexation, thirst, and a large but empty pulse.
Astragalus Root [Huangqi] (honey-fried, 1 liang), Angelica Sinensis [Danggui] (washed with wine, 2 qian). Decoct in water and take on an empty stomach.
Li Dongyuan said: The *Classic* states that an empty pulse indicates Blood deficiency; it also states that Blood deficiency generates fever. These conditions mostly arise from irregular eating and overwork. The symptoms resemble those treatable by White Tiger Decoction [Baihu Tang], distinguished only by the absence of a long and solid pulse. Misusing White Tiger Decoction will certainly lead to death. Astragalus Root is a sweet-warm herb for tonifying Qi. Here, the root condition is Blood deficiency; why use it as the sovereign herb? The *Classic* says: "In treating disease, one must seek the root"; and again: "When Yang grows, Yin grows." Therefore, tonifying Qi when there is Blood deficiency treats the root. Assisted by the moistening properties of Angelica Sinensis, which harmonizes with Yin-Blood, the two herbs work together to reach everywhere above and below, interior and exterior. Hence, it is named "Blood-Tonifying Decoction" [Buxue Tang].
Treats sudden and violent hematemesis.
Lotus Node [Oujie] (7 nodes), Lotus Leaf Tip [Heye Ding] (7 tips). Grind finely together with honey, decoct in water, remove the dregs, and take warm.
Treats excessive worry damaging the Heart, leading to hematemesis and epistaxis.
Ginseng Root [Renshen] (5 qian), Polygala Root [Yuanzhi] (decored, boiled in Licorice water), White Peony Root [Baishao], Asparagus Tuber [Tiandong], Ophiopogon Tuber [Maidong] (both decored), Astragalus Root [Huangqi], Lotus Node [Oujie], Donkey-Hide Gelatin [Ejiao] (fried with clam powder), Myrrh [Moyao], Angelica Sinensis [Danggui], Raw Rehmannia Root [Sheng Dihuang] (each 1 liang), Licorice Root [Gancao] (honey-fried, 5 qian). Take 4 qian per dose, decoct with ginger water, and take warm.