时珍曰∶苏东坡《良方》云∶鹿阳兽，见阴而角解；麋阴兽，见阳而角解。故补阳
以鹿角为胜，补阴以麋角为胜。其不同如此，但云鹿胜麋，麋胜鹿，疏矣。按此说与沈存中
“鹿茸利补阴，麋茸利补阳”之说相反。以理
【附方】旧三，新五。
异类有情丸∶《韩氏医通》云∶此方自制者。凡丈夫中年觉衰，便可服饵。盖鹿乃纯阳，
龟、虎属阴，血气有情，各从其类，
浸七日，酥炙研）各三两六钱，鹿茸（熏干，酒洗净，酥涂炙，研）、虎胫骨（长流水浸七
日，
蜜涂酥炙）各二两四钱，水火炼蜜，入
九十丸。如浓味善饮者，加猪胆汁一二合，以寓降火之义。
（炒）、牡蛎（ ）各一两，为末，酒糊丸梧桐子大。每盐汤下四十丸。（《普济》）
白胶二两炙为末，酒二升和，温服。（《外台》）
合，分再服。（《外台》）
小便不禁，上热下寒者∶鹿角霜为末，酒糊和，丸梧桐子大。每服三四十丸，空心温酒
下。
李时珍说：苏东坡在《良方》中记载：鹿是阳兽，见到阴气就脱角；麋是阴兽，见到阳气就脱角。因此，补阳气以鹿角为优，补阴气以麋角为优。它们的不同之处如此明显，如果只笼统地说鹿比麋好，或者麋比鹿好，那就太粗疏了。按照这种说法，与沈括（字存中）“鹿茸利于补阴，麋茸利于补阳”的观点相反。从道理上……
【附方】旧方三首，新方五首。
异类有情丸：《韩氏医通》记载：此方为自制方剂。凡是中年男子感觉身体衰退，就可以服用。因为鹿属纯阳，龟、虎属阴，血肉之品皆含情志，各自顺应其同类属性。将药材浸泡七日，用酥油炙烤后研末（各三两六钱），鹿茸（熏干，酒洗净，涂酥油炙烤，研末）、虎胫骨（用长流水浸泡七日，涂蜂蜜和酥油炙烤）各二两四钱，用水火炼蜜制成梧桐子大小的药丸。每次服用四十丸，用盐汤送下。（出自《普济方》）。如果是口味浓重且善于饮酒的人，可加入猪胆汁一二合，以寓降火之意。（出自《外台秘要》）。白胶二两，炙后研末，用二升酒调和，温服。（出自《外台秘要》）。分两次服用。（出自《外台秘要》）。对于小便不禁，伴有上热下寒症状者：将鹿角霜研末，用酒糊调和，制成梧桐子大小的药丸。每次服用三四十丸，空腹时用温酒送下。
Li Shizhen stated: Su Dongpo, in his *Liang Fang* (Good Prescriptions), recorded that the deer is a Yang animal, shedding its antlers when exposed to Yin; the elk is a Yin animal, shedding its antlers when exposed to Yang. Therefore, for tonifying Yang, deer antler is superior; for tonifying Yin, elk antler is superior. Their differences are so distinct that merely stating "deer is better than elk" or "elk is better than deer" is superficial. According to this reasoning, it contradicts Shen Kuo's (courtesy name Cunzhong) assertion that "Deer Antler Velvet (*Ruxi Lu*, 鹿茸) is beneficial for tonifying Yin, while Elk Antler Velvet (*Ruxi Mi*, 麋茸) is beneficial for tonifying Yang." From a theoretical perspective...
[Attached Prescriptions] Three old prescriptions, five new prescriptions.
Yilei Youqing Wan (Pill of Different Species with Affinity): *Han Shi Yi Tong* (Han's Medical Communications) records: This prescription was self-formulated. Whenever middle-aged men feel their vitality declining, they may take this medicine. Since the deer belongs to pure Yang, and the turtle and tiger belong to Yin, their flesh and blood contain vital essence (*Qi*), each following its own kind. [Ingredients processed by soaking for seven days, roasting with ghee, and grinding]: Each at three taels and six qian. Deer Antler Velvet (*Ruxi Lu*, 鹿茸) (smoke-dried, washed with wine, coated with ghee and roasted, ground), Tiger Tibia Bone (*Hujing Gu*, 虎胫骨) (soaked in running water for seven days, coated with honey and ghee and roasted) each at two taels and four qian. Honey refined using fire and water methods is used to form pills the size of paulownia seeds. Take forty pills per dose, administered with salt water. For those with rich tastes who drink well, add one or two he of pig bile to imply the meaning of descending fire. White Gelatin (*Baijiao*, 白胶) two taels, roasted and ground, mixed with two sheng of wine, taken warm. Taken in two doses. For incontinence of urine accompanied by upper heat and lower cold: Grind Deer Antler Frost (*Lujiaoshuang*, 鹿角霜) into powder, mix with wine paste to form pills the size of paulownia seeds. Take thirty to forty pills per dose, administered with warm wine on an empty stomach.