麻黄（去节） 羌活 防风 甘草（各三钱）
疟发时，头疼，身热，脊强，脉浮者，名曰寒疟，此方主之。
寒热一日一发，间日一发，三日一发，皆名曰疟，此云头疼、身热、脊强、脉浮，皆太
阳证也。太阳乃寒水所化。故《机要》名为寒疟。麻黄、羌活，太阳经之汗药也。故以为君；
防风乃诸风药之卒徒，故以为佐；甘草能和诸药而兼解散，故以为使。是方乃攻实之剂，若
临病用药，则血虚者宜加四物，气虚者宜加参、术，全在活法，不徒执也。
白芷（二钱） 知母 石膏（各五钱）
疟发时，目痛，鼻干，口渴，自汗，不得眠，脉长，有热无寒，或热多寒少者，名曰热
疟，此方主之。
此条皆阳明证也，以其有热而无寒，或热多而寒少，故《机要》名为热疟。白芷所以解
阳明之经，石膏所以清阳明之腑，知母所以养阳明之阴。虚者宜加人参，质实便燥者，此方
不足与也，宜下之，用伤寒门大柴胡汤，后以本方调之。
柴胡（去芦） 黄芩（炒） 人参 甘草 半夏（法制） 生姜 大枣
疟发时，耳聋，胁痛，寒热往来，口苦，喜呕，脉弦者，名曰风疟，此方主之。
此条皆少阳证也，以少阳为甲木，在天为风，故《机要》名为风疟。柴胡、黄芩能和解
少阳经之邪，半夏、生姜能散少阳经之呕，人参、甘草能补中气之虚，补中所以防邪之入里
也。正考见伤寒门。
麻黄（去除节段） 羌活 防风 甘草（各三钱）
疟疾发作时，出现头痛、身体发热、脊柱僵硬、脉象浮的，称为寒疟，此方主治。
恶寒与发热每日发作一次，或隔日发作一次，或三日发作一次的，都称为疟疾；这里提到的头痛、身体发热、脊柱僵硬、脉象浮，都是太阳病（太阳经受邪所致的病证）的表现。太阳经由寒水之气化生。所以《黄帝内经机要》称之为寒疟。麻黄、羌活，是治疗太阳经表证的发汗药。所以作为君药（主药）；
防风是各种祛风药的辅助药物，所以作为佐药（辅药）；甘草能够调和诸药并兼有解散表邪的作用，所以作为使药（引经药）。这个方剂属于攻逐实邪的药剂，如果在临证用药时，血虚的患者适宜加入四物汤，气虚的患者适宜加入人参、白术，全在于灵活运用，不能死板拘执。
白芷（二钱） 知母 石膏（各五钱）
疟疾发作时，出现眼睛疼痛、鼻子干燥、口渴、自然出汗、无法入睡、脉象长、只有发热没有恶寒，或者热多寒少的，称为热疟，此方主治。
这一条所述的都是阳明病（阳明经受邪所致的病证）的表现，因为其特征是有热而无寒，或者热多而寒少，所以《黄帝内经机要》称之为热疟。白芷用来解除阳明经的邪气，石膏用来清泻阳明腑的实热，知母用来滋养阳明经的阴液。体质虚弱者适宜加入人参，体质壮实且大便燥结者，此方不足以应对，应当使用下法，选用伤寒门中的大柴胡汤，随后用本方调理。
柴胡（去除芦头） 黄芩（炒制） 人参 甘草 半夏（法制加工） 生姜 大枣
疟疾发作时，出现耳聋、胁肋疼痛、寒热往来（忽冷忽热）、口苦、喜欢呕吐、脉象弦的，称为风疟，此方主治。
这一条所述的都是少阳病（少阳经受邪所致的病证）的表现，因为少阳对应甲木，在天为风，所以《黄帝内经机要》称之为风疟。柴胡、黄芩能够和解少阳经的邪气，半夏、生姜能够消散少阳经引起的呕吐，人参、甘草能够补益中气的虚弱，补益中气是为了防止邪气内传入里。详细的考证可见于伤寒门。
Ephedrae Herba (Mahuang, 麻黄) [devoid of nodes] Notopterygii Rhizoma et Radix (Qianghuo, 羌活) Saposhnikoviae Radix (Fangfeng, 防风) Glycyrrhizae Radix et Rhizoma (Gancao, 甘草) [each 3 qian]
When malaria attacks, if there is headache, fever, stiffness of the spine, and a floating pulse, it is named Cold Malaria; this formula governs it.
Chills and fever occurring once daily, every other day, or every three days are all named Malaria. The mentioned headache, fever, stiffness of the spine, and floating pulse are all manifestations of Taiyang Syndrome (disease pattern caused by pathogenic invasion of the Taiyang channel). The Taiyang channel is transformed from cold water qi. Therefore, *Jingyue Quanshu* names it Cold Malaria. Ephedrae Herba and Notopterygii Rhizoma et Radix are diaphoretic herbs for the Taiyang channel. Thus, they serve as the Jun herb (principal herb); Saposhnikoviae Radix is an assistant to various wind-dispelling herbs, thus serving as the Zuo herb (assistant herb); Glycyrrhizae Radix et Rhizoma can harmonize the various herbs and simultaneously aid in releasing the exterior, thus serving as the Shi herb (envoy herb). This formula is a agent that attacks excess patterns. When prescribing for clinical cases, patients with blood deficiency should add Siwu Tang (Four Substances Decoction), and those with qi deficiency should add Ginseng Radix et Rhizoma (Renshen, 人参) and Atractylodis Macrocephalae Rhizoma (Baizhu, 白术). It entirely depends on flexible application, not rigid adherence.
Angelicae Dahuricae Radix (Baizhi, 白芷) [2 qian] Anemarrhenae Rhizoma (Zhimu, 知母) Gypsum Fibrosum (Shigao, 石膏) [each 5 qian]
When malaria attacks, if there is eye pain, nasal dryness, thirst, spontaneous sweating, insomnia, a long pulse, heat without chills, or more heat than chills, it is named Hot Malaria; this formula governs it.
This section describes Yangming Syndrome (disease pattern caused by pathogenic invasion of the Yangming channel). Because there is heat without chills, or more heat than chills, *Jingyue Quanshu* names it Hot Malaria. Angelicae Dahuricae Radix resolves pathogenic factors in the Yangming channel; Gypsum Fibrosum clears heat from the Yangming fu-organs; Anemarrhenae Rhizoma nourishes the yin of the Yangming channel. For deficient patients, Ginseng Radix et Rhizoma should be added. For patients with robust constitution and dry stool, this formula is insufficient; purgation should be used, employing Da Chaihu Tang (Major Bupleurum Decoction) from the Shanghan Men (Treatise on Cold Damage), followed by regulation with this formula.
Bupleuri Radix (Chaihu, 柴胡) [devoid of rhizome] Scutellariae Radix (Huangqin, 黄芩) [stir-fried] Ginseng Radix et Rhizoma (Renshen, 人参) Glycyrrhizae Radix et Rhizoma (Gancao, 甘草) Pinelliae Rhizoma (Banxia, 半夏) [processed method] Zingiberis Rhizoma Recens (Shengjiang, 生姜) Jujubae Fructus (Dazao, 大枣)
When malaria attacks, if there is deafness, hypochondriac pain, alternating chills and fever, bitter taste in the mouth, propensity to vomit, and a wiry pulse, it is named Wind Malaria; this formula governs it.
This section describes Shaoyang Syndrome (disease pattern caused by pathogenic invasion of the Shaoyang channel). Since Shaoyang corresponds to Jia Wood and represents Wind in Heaven, *Jingyue Quanshu* names it Wind Malaria. Bupleuri Radix and Scutellariae Radix can harmonize pathogenic factors in the Shaoyang channel; Pinelliae Rhizoma and Zingiberis Rhizoma Recens can disperse vomiting associated with the Shaoyang channel; Ginseng Radix et Rhizoma and Glycyrrhizae Radix et Rhizoma can tonify the deficiency of Middle Qi. Tonifying the Middle Qi prevents pathogens from entering inward. Detailed examination can be found in the Shanghan Men (Treatise on Cold Damage).