茯苓为之使。恶白藓皮、龟甲。
甘，微温。入手太阴经，兼入足太阴气分。助气补血。固腠理，益脾胃，托疮疡，止盗
汗。（固气之功。）得枣仁，
止自汗。配干姜，暖三焦。配川连，治肠风下血。配茯苓，治气虚白浊。配川芎、糯米，治
胎动、腹痛、下黄汁。佐当
归，补血。使升、柴，发汗。
补虚，蜜炒。嘈杂病，乳炒。解毒，盐水炒。胃虚，米泔炒。暖胃，除泻痢，酒拌炒。
泻心
火，退虚热，托疮疡，生用。恐滞气，加桑白皮数分。血枯（助气生火，血愈枯也。）中风，
（阳气升，风益疾，痰益盛。）火动生痰，五内虚甚，（升气于表也。）上热下寒，（气升，上
益热，下益寒。）痘色不润，（助气，血愈枯。）肝气不和，（黄耆能动三焦之火。）皆禁用。
怪症∶四肢节脱，但有皮连，不能举动，此筋解也。用黄耆三两，酒浸一宿，焙研，酒下二
钱，至愈而止。
黄 补气，而气有内外之分。气之卫于脉外者，在内之卫气也。气之行于肌表者，在外
之卫
气也。肌表之气，补宜黄耆。五内之气，补宜人参。若内气虚乏，用黄 升提于表，外气日
见有余，而内气愈使不足，久之血无所摄，营气亦觉消散，虚损之所以由补而成也。故内外
虚气之治，各有其道，不谙其道而混治之，是犹盲人之不见黑白也。
Poria (Fuling) serves as the guiding herb. It is incompatible with Dictamni Cortex (Baixianpi) and Testudinis Carapax et Plastrum (Guijia).
Sweet in taste, slightly warm in nature. Enters the Hand-Taiyin Lung Meridian, and also enters the Qi aspect of the Foot-Taiyin Spleen Meridian. Assists Qi and nourishes Blood. Consolidates the Couli (skin texture and pores), benefits the Spleen and Stomach, expels pus from sores/ulcers, and stops nocturnal sweating. (Its function lies in consolidating Zheng Qi [Upright Qi].) Combined with Suanzaoren (Ziziphi Spinosae Semen), it stops spontaneous sweating. Paired with Ganjiang (Zingiberis Rhizoma), it warms the Sanjiao (Triple Burner). Paired with Chuanlian (Coptidis Rhizoma), it treats intestinal wind bleeding. Paased with Fuling (Poria), it treats white turbidity due to Qi deficiency. Paired with Chuanxiong (Ligustici Chuanxiong Rhizoma) and Nuomi (Oryza Sativa Germen), it treats restless fetus, abdominal pain, and discharge of yellow fluid. With Danggui (Angelicae Sinensis Radix) as an assistant, it nourishes Blood. Guided by Shengma (Cimicifugae Rhizoma) and Chaihu (Bupleuri Radix), it induces sweating.
For tonifying deficiency, stir-fry with honey; for Zaochao disease (epigastric discomfort resembling hunger but not quite, resembling pain but not quite), stir-fry with milk; for detoxification, stir-fry with salt water; for Stomach deficiency, stir-fry with rice washing water; for warming the Stomach and eliminating diarrhea/dysentery, stir-fry with wine mixed.
Raw usage clears Heart Fire, reduces deficiency heat, and expels pus from sores/ulcers. If concerned about stagnating Qi, add a small amount of Sangbaipi (Morus Albae Cortex). Contraindicated in: Xueku (Blood Withering - assisting Qi generates fire, causing blood to wither further); Zhongfeng (Wind Stroke - Yang Qi rises, wind becomes more severe, phlegm increases); Huodong Shengtan with extreme internal deficiency (Qi rises to the exterior); Shangre Xiahan (Upper Heat Lower Cold - Qi rises, upper part becomes hotter, lower part colder); Dou se bu run (Pox color not lustrous - assisting Qi causes blood to wither further); Ganqi buhe (Liver Qi disharmony - Huangqi can agitate Fire in the Sanjiao). All these are strictly contraindicated.
Strange Syndrome: Dislocation of joints in four limbs, connected only by skin, unable to move, this is Jiejie (relaxation of sinews). Use Huangqi (Astragali Membranacei Radix) 3 liang, soaked in wine overnight, dried and powdered, taken with wine 2 qian, until cured.
Huangqi tonifies Qi, but Qi has internal and external distinctions. The Qi guarding outside the vessels is the Wei Qi (Defensive Qi) internally. The Qi circulating on the muscle surface is the Wei Qi externally. For Qi on the muscle surface, Huangqi is suitable for tonification. For Qi within the five Zang organs, Renshen (Ginseng Radix) is suitable for tonification. If internal Qi is deficient and scanty, using Huangqi to lift it to the exterior will make external Qi appear abundant day by day, while internal Qi becomes increasingly insufficient. Over time, Blood loses its control, and Ying Qi (Nutritive Qi) feels dissipated. This is how deficiency syndromes arise from improper tonification. Therefore, the treatment of internal and external deficient Qi each has its own method. Ignoring these methods and treating them indiscriminately is like a blind person failing to distinguish black from white.