苦，温，无毒。治历节风痛，疗脚弱痛痹。燥血中之湿寒，漱风蛀之牙痛。
一切筋痛，松节一两，乳香一钱，细火炒焦，为末。每木瓜酒下一、二钱。（验方第一。）
历节风痛，松节三斤，酒浸服。又方松毛捣汁，酒浸七日服。（第二。）
去外粗皮用。浓而极辛者。
甘，辛，大热，有小毒。温中行血，益火消阴，敛汗止痛，除烦坠胎。
生南海、合浦、交趾、桂阳等处。此有数种，叶长如枇杷，坚硬有毛及锯齿，其花白色，
其
皮多脂者，牡桂也。叶如柿叶而尖狭光净，有三纵纹而无锯齿，花有黄有白，其皮薄而卷者
，菌桂也，即筒桂。今商人所货，皆此二种。但以卷者为菌桂，平卷及板者为牡桂。又有以
丹阳木皮伪充桂者，不可不知。
肉桂去内外皮，即肉桂心也。
苦，辛，无毒。疗一切风气，除九种心痛。暖腰膝而治脚痹，利骨节而舒筋挛，消瘀血
而破
辛，温，无毒。入足厥阴、太阳膀胱经。开腠理而解肌，通经络而敛汗。去皮肤之风湿，
止
蓄血，退手臂之风痛。能止奔豚，更除气结。
九种心痛，桂心为末，每酒下二钱。桂枝亦可。（验方第一。）
心腹胀痛气短，肉桂二两，水煎分服。（第二。）
心痛厥逆，桂心末，每酒下一钱。（第三。）
产后心痛症痛，桂末酒下。（第四。）
桂枝汤 桂枝 白芍 甘草 大枣 生姜
治头痛发热，汗出脉缓。（诸方第一。）
桂枝人参汤 桂枝 人参 炙草 白术 干姜
治因数下后，下利，心下痞硬。（第二。）
桂枝甘草汤 桂枝 甘草
治发汗过多，叉手自冒心，心下悸欲得按者。（第三。）
柴胡桂枝汤 柴胡 黄芩 半夏 甘草 白芍 桂枝 生姜 大枣
治心下支结，微呕，肢节烦痛。又治心腹猝痛。（第四。）
桂甘麻附汤 桂枝 甘草 麻黄 附子 细辛 生姜 大枣
治心下坚如盘，症脉虚者。（第五。）
桂枝茯苓丸 桂枝 白芍 丹皮 桃仁 茯苓
治妊娠宿有症病，胎动漏血。（第六。）
桂芍知母汤 桂枝 白术 知母 防风 白芍 生姜 麻黄 甘草 附子
治肢节疼痛，脚肿头眩欲吐。（第七。）
[Songjie (Pine Joint)]
Bitter in taste, warm in nature, non-toxic. Treats joint pain caused by Li Jie Feng (Lichu Rheumatism), and alleviates weakness, pain, and bi-syndrome in the feet. It dries damp-cold within the blood and relieves toothache caused by wind erosion.
(Verified Formula 1): For all types of tendon pain, take one qian of Songjie (Pine Joint) and one fen of Xuxiang (Frankincense). Stir-fry over a small fire until charred, then grind into powder. Take one to two qian each time, washed down with Mugua wine (Quince Wine).
(Verified Formula 2): To treat Li Jie Feng pain, take three jin of Songjie (Pine Joint), soak in wine, and consume. Another method: Crush Songmao (Pine Needles) to extract juice, soak in wine for seven days, and drink.
[Guizhi (Cinnamon Twig)]
The rough outer bark should be removed before use. Those that are dense and extremely pungent are preferred.
Sweet and pungent in taste, very hot in nature, slightly toxic. It warms the middle jiao and promotes blood circulation, benefits Fire (Mingmen Fire) to dissipate Yin cold, consolidates sweat and stops pain, removes vexation, and can induce abortion.
Produced in Nanhai, Hepu, Jiaozhi, Guiyang, and other places. There are several varieties: Leaves long like loquat leaves, hard with hairs and serrated edges, white flowers, and oily bark are called Mogui (Male Cinnamon). Leaves like persimmon leaves but sharper, narrower, and smoother, with three longitudinal veins and no serrations, yellow or white flowers, and thin curled bark are called Jungui (Fungus Cinnamon), also known as Tonggui (Tube Cinnamon). Merchants currently sell these two types. The distinction is mainly that curled ones are Jungui, while flat or board-like ones are Mogui. Also, wood bark from Danyang is sometimes used to fake cinnamon; this must be known.
[Rouguixin (Cinnamon Heart)]
This refers to the inner part of Rougui (Cinnamon Bark) after removing both the outer rough bark and the inner layer.
Bitter and pungent in taste, non-toxic. Treats all kinds of wind-pathogens, eliminates nine types of heart pain. Warms the waist and knees to treat foot bi-syndrome, benefits bone joints to relieve tendon spasms, and resolves blood stasis.
[Guizhi (Cinnamon Twig)]
Pungent in taste, warm in nature, non-toxic. Enters the Foot Jueyin Liver Meridian and the Foot Taiyang Bladder Meridian. Opens the cou li (pores/skin texture) to release the muscle layer, unblocks meridians to consolidate sweat. Removes wind-dampness from the skin, stops accumulated blood stasis, and relieves wind-pain in the arms. It can stop Ben Tun (Rushing Pig Qi) and further resolve qi stagnation.
(Verified Formula 1): For nine types of heart pain, take Guixin (Cinnamon Heart) powder, wash down with two qian of wine each time. Guizhi (Cinnamon Twig) can also be used. (Verified Formula 1.)
(Verified Formula 2): For abdominal distension, pain, and shortness of breath, take two liang of Rougui (Cinnamon Bark), decoct in water, and divide into doses.
(Verified Formula 3): For heart pain with cold reversal of limbs, take Guixin (Cinnamon Heart) powder, wash down with one qian of wine each time.
(Verified Formula 4): For postpartum heart pain and mass-related pain, take Guimo (Cinnamon Powder), wash down with wine.
[Guizhi Tang (Cinnamon Twig Decoction)]
Ingredients: Guizhi (Cinnamon Twig), Baishao (White Peony Root), Gancao (Licorice Root), Dazao (Jujube), Shengjiang (Fresh Ginger).
Indications: Headache, fever, sweating, and slow pulse. (First among various formulas.)
[Guizhi Renshen Tang (Cinnamon Twig and Ginseng Decoction)]
Ingredients: Guizhi (Cinnamon Twig), Renshen (Ginseng Root), Zhi Cao (Honey-fried Licorice Root), Baizhu (Atractylodes Macrocephala Rhizome), Ganjiang (Dried Ginger).
Indications: Diarrhea and epigastric fullness/hardness resulting from excessive purgation. (Second.)
[Guizhi Gancao Tang (Cinnamon Twig and Licorice Decoction)]
Ingredients: Guizhi (Cinnamon Twig), Gancao (Licorice Root).
Indications: Palpitations where the patient crosses their hands over the heart area and desires pressure, following excessive sweating. (Third.)
[Chaihu Guizhi Tang (Bupleurum and Cinnamon Twig Decoction)]
Ingredients: Chaihu (Bupleurum Root), Huangqin (Scutellaria Root), Banxia (Pinellia Tuber), Gancao (Licorice Root), Baishao (White Peony Root), Guizhi (Cinnamon Twig), Shengjiang (Fresh Ginger), Dazao (Jujube).
Indications: Subcostal binding, slight vomiting, and painful/joint discomfort. Also treats sudden heart and abdominal pain. (Fourth.)
[Guigan Ma Fu Tang (Cinnamon Twig, Licorice, Ephedra, and Aconite Decoction)]
Ingredients: Guizhi (Cinnamon Twig), Gancao (Licorice Root), Mahuang (Ephedra Herb), Fuzi (Prepared Aconite Root), Xixin (Asarum Root), Shengjiang (Fresh Ginger), Dazao (Jujube).
Indications: Hardness in the epigastrium resembling a plate, with a deficient pulse. (Fifth.)
[Guizhi Fuling Wan (Cinnamon Twig and Poria Pill)]
Ingredients: Guizhi (Cinnamon Twig), Baishao (White Peony Root), Danpi (Moutan Cortex), Taoren (Peach Seed), Fuling (Poria).
Indications: Existing masses (zheng) during pregnancy causing fetal restlessness and spotting/bleeding. (Sixth.)
[Gushao Zhimu Tang (Cinnamon Twig, White Peony, and Anemarrhena Decoction)]
Ingredients: Guizhi (Cinnamon Twig), Baizhu (Atractylodes Macrocephala Rhizome), Zhimu (Anemarrhena Rhizome), Fangfeng (Saposhnikovia Root), Baishao (White Peony Root), Shengjiang (Fresh Ginger), Mahuang (Ephedra Herb), Gancao (Licorice Root), Fuzi (Prepared Aconite Root).
Indications: Pain in limbs and joints, swollen feet, dizziness, and nausea. (Seventh.)