气味甘平，无毒。主治心腹鬼疰，精物老魅，咳逆，泄痢脓血，女子漏下，症瘕坚结
，小儿热气惊痫。
（晋地川谷及大山山岩，水岸土穴之中多有死龙之骨，今梁益、巴中、河东州郡山穴、
水涯
间亦有之骨。有雌雄骨，细而纹广者，雌也。骨粗而纹狭者，雄也。入药取五色具而白地碎
纹，其质轻虚，舐之粘舌者为佳。黄白色者次之，黑色者下也。其质白重，而花纹不细者，
名石龙骨，不堪入药，其外更有齿角，功用与龙骨相等。）
鳞虫三百六十，而龙为之长，背有八十一鳞，具九九之数，上应东方七宿，得冬月蛰藏
之精
，从泉下而上腾于天，乃从阴出阳，自下而上之药也。主治心腹鬼疰、精物老魅者，水中天
气，上交于阳，则心腹和平，而鬼疰精魅之阴类自消矣。咳逆者，天气不降也。泄痢脓血者
，土气不藏也。女子漏下者，水气不升也。龙骨启泉下之水精，从地土而上腾于天，则阴阳
交会。上下相和，故咳逆、泄痢漏下，皆可治也。土气内藏，则症瘕坚结自除，水气上升，
则小儿热气惊痫自散，不言久服，或简脱也。
气味甘温，无毒。主治漏下恶血，寒热，惊痫，益气，强志，发齿，不老。（《本经
》以白胶入上品，鹿茸入中品，今定俱入上品。）
（鹿游处山林，孕六月而生，性喜食龟，能别良草，卧则口鼻对尾闾，以通督脉。凡含
血之
物，肉最易长，筋次之，骨最难长。故人年二十骨髓方坚，唯麋鹿之角，自生至坚，无两月
之久，大者至二十余斤，计一日夜须生数两。凡骨之生无速于此，故能补骨血，益精髓。又
，头者，诸阳之会，上钟于茸，故能助阳。凡用必须鹿茸，今麋鹿并用，不可不别。）
鹿性纯阳，息通督脉，茸乃骨精之余，从阴透顶，气味甘温，有火土相生之义。主治漏
下恶
血着，土气虚寒，则恶血下漏。鹿茸禀火气而温土，从阴出阳，下者举之，而恶血不漏矣。
寒热惊痫者，心为阳中之太阳，阳虚则寒热。心为君主而藏神，神虚则惊痫。鹿茸阳刚渐长
，心神充足，而寒热惊痫自除矣。益气强志者，益肾脏之气，强肾藏之志也。生齿不老者，
齿为骨之余，从其类而补之，则肾精日益，故不老。
[Longgu (Dragon Bone)]
Taste and nature: Sweet, neutral. Non-toxic. Indications: Treats "Gui Zhu" (diseases caused by evil qi wandering in the body, resembling possession) in the heart and abdomen, afflictions by spirits or demons, cough with reverse flow of Qi (Ke Ni), dysentery with pus and blood, leukorrhea or metrorrhagia in women (Lou Xia), hard masses in the abdomen (Zheng Jia), and pediatric convulsive epilepsy due to heat pathogen.
(Dragon bones are found in the valleys and mountain rocks of Jin region, as well as in soil burrows near water banks; they are also present in the mountain caves and shores of Liangzhou, Yizhou, Bazhong, and Hedong commanderies. There are male and female bones: those that are fine with broad striations are female; those that are coarse with narrow striations are male. For medicinal use, select those with all five colors present, a white base, and fragmented patterns. The best quality is light, void-textured, and sticky when licked. Yellowish-white is secondary, and black is inferior. If the texture is white and heavy with non-fine patterns, it is called "Shi Longgu" (Stone Dragon Bone) and is unsuitable for medicine. Additionally, teeth and horns have efficacy equal to dragon bone.)
Among the 360 species of scaled creatures, the dragon is the leader. It has 81 scales on its back, corresponding to the number of 9x9, and aligns with the Seven Mansions of the East. It embodies the essence of winter hibernation and storage, rising from the springs below to the heavens. Thus, it is a herb that moves from Yin to Yang, ascending from below. It treats Gui Zhu and spirit afflictions in the heart and abdomen because the Qi of water ascends to interact with Yang, harmonizing the heart and abdomen, thereby eliminating the Yin-type pathogens like ghosts and demons. Cough with reverse flow occurs due to the failure of Heaven's Qi (Lung Qi) to descend. Dysentery with pus and blood results from the failure of Earth Qi (Spleen/Stomach Qi) to store. Metrorrhagia in women is due to the failure of Water Qi (Kidney Qi) to ascend. Longgu opens the Water Essence from the springs, allowing it to rise from the earth to the heavens, facilitating the intersection of Yin and Yang and harmony between upper and lower. Therefore, it treats cough, dysentery, and bleeding. When Earth Qi stores internally, abdominal masses resolve naturally; when Water Qi ascends, pediatric heat-induced convulsions dissipate. The text does not mention long-term use, likely due to textual omission.
[Lurong (Deer Antler Velvet)]
Taste and nature: Sweet, warm. Non-toxic. Indications: Treats metrorrhagia with foul blood, alternating chills and fever, convulsive epilepsy, tonifies Qi, strengthens willpower/memory, promotes tooth growth, and prevents aging. (The *Shennong Bencao Jing* listed Baijiao in the Superior Grade and Lurong in the Medium Grade; now both are classified in the Superior Grade.)
(Deer inhabit mountains and forests, gestating for six months before giving birth. They prefer eating turtles and can distinguish good herbs. When lying down, their mouth and nose face the Weilu point (DU-4) to connect with the Du Meridian. Among blood-containing organisms, flesh grows easiest, tendons second, and bones hardest. Humans do not achieve solid marrow until age twenty. However, deer antlers harden from growth to maturity in less than two months, with large ones weighing over twenty jin, growing several liang per day. No bone grows faster, so it can tonify bone blood and benefit essence and marrow. Furthermore, the head is the meeting place of all Yang meridians, and essence gathers in the velvet, thus assisting Yang. One must use Deer Antler Velvet specifically; currently, elk antlers are used interchangeably, which requires distinction.)
Deer nature is purely Yang, and its Qi connects with the Du Meridian. The velvet is the surplus of bone essence, emerging from Yin to the crown. Its taste is sweet and warm, embodying the generation of Fire generating Earth. It treats metrorrhagia with foul blood because deficiency-cold of Earth Qi causes foul blood to leak. Lurong inherits Fire Qi to warm Earth, moving from Yin to Yang, lifting sunken Qi, thus stopping the leakage. Alternating chills and fever occur because the Heart is the Supreme Yang within Yang; deficiency of Yang leads to chills and fever. The Heart is the Sovereign and houses the Shen (Spirit); deficiency of Shen leads to fright and epilepsy. As Lurong's Yang energy gradually increases, the Heart Spirit becomes sufficient, resolving chills, fever, fright, and epilepsy. Tonifying Qi and strengthening willpower refers to supplementing Kidney Qi and reinforcing the Will (Zhi) stored in the Kidneys. Promoting tooth growth and preventing aging occurs because teeth are the surplus of bones; tonifying according to similarity replenishes Kidney Essence daily, thus preventing aging.