健忘者，陡然忘之，尽力思索不来也。夫人之神宅于心，心之精根据于肾，而脑为元神之府，精髓之海，
实记性所凭也。正希金先生尝曰∶凡人外有所见，必留其影于脑。小儿善忘者，脑未满也。老人健忘者，脑
渐空也。隐庵云∶观此则知人。每记忆必闭目上瞬而追索之，亦凝神于脑之义。故治健忘者，必交其心肾，
使心之神明，下通于肾，肾之精华，上升于脑。精能生气，气能生神，神定气清，自鲜遗忘之失。惟因病善
忘者，或精血亏损，务培肝肾，六味丸加远志、五味。或萦思过度，专养心脾，归脾汤。或精神短乏，兼补
气血，人参养营汤下远志丸。或上盛下虚，养心汤。或上虚下盛，龙眼汤。或心火不降，肾水不升，神明不
定，朱雀丸。或素有痰饮，茯苓汤。或痰迷心窍，导痰汤下寿星丸。或劳心诵读，精神恍惚，安神定志丸。或
心气不足，怔忡健忘，辰砂妙香散。或禀赋不足，神志虚扰，定志丸、孔圣枕中丹。或年老神衰，加减固本丸。
若血瘀于内，而喜忘如狂，代抵当丸。
〔肝肾〕六味丸 见一卷中风。
〔心脾〕归脾汤 见二卷劳瘵。
〔气血〕人参养营汤 见二卷劳瘵。
〔热烦〕远志丸 见本卷痫。
〔下虚〕养心汤 参 归 术 二冬 菖蒲 远志 茯神 牛膝 熟地 木通
〔上虚〕龙眼汤 参 麦冬 草 柴胡 升麻 茯神 丹参 龙眼 远志
〔心肾〕朱雀丸 沉香（一两） 茯神（四两） 人参（二两） 蜜丸。
〔痰饮〕茯苓汤 参 陈 夏 苓 草 香附 益智（各一钱） 乌梅（一个） 竹沥 姜汁（各二匙）
〔痰迷〕导痰汤 见一卷中风。
〔补摄〕寿星丸 参 术 草 陈 苓 地 芍 归 味 桂心 胆星 琥珀 朱砂 远志
猪心血糊丸。
〔恍惚〕安神定志丸 人参 白术 茯苓 茯神 菖蒲 远志 麦冬 枣仁 牛黄 朱砂 龙眼 蜜丸。
〔怔忡〕辰砂妙香散 见二卷衄。
〔虚扰〕定志丸 见本卷癫狂。
〔毓神〕枕中丹 见本卷癫狂。
〔年老〕加减固本丸 熟地 天冬（各一两半） 麦冬 炙草 茯苓（各一两） 人参 菖蒲 远志
朱砂（各五钱） 蜜丸。
〔血瘀〕代抵当汤 见二卷血。
Amnesia refers to the sudden forgetting of matters, where one cannot recall them even with strenuous mental effort. The residence of human spirit (Shen) is in the Heart; the essence of the Heart is rooted in the Kidney; and the brain is the mansion of the original spirit (Yuan Shen) and the sea of essence and marrow, which actually serves as the basis for memory function. Mr. Zhengxi Jin once said: "Whenever a person perceives something externally, an image must remain in the brain." Children who forget easily do so because their brains are not yet fully developed; the elderly who suffer from amnesia do so because their brains gradually become empty. Yinan stated: "Observing this, we can understand that when people memorize, they necessarily close their eyes and roll them upward to search for memories, which is also the principle of concentrating spirit in the brain." Therefore, treating amnesia requires the interaction between the Heart and Kidney, allowing the spirit of the Heart to descend and connect with the Kidney, and the essence of the Kidney to ascend to the Brain. Essence generates Qi, and Qi generates Spirit; when the spirit is settled and Qi is clear, there will naturally be few instances of forgetting.
However, if amnesia is caused by disease:
If it is due to deficiency of essence and blood, one must cultivate and tonify the Liver and Kidney, using Liuwei Wan (Six-Ingredient Pill with Rehmannia) added with Yuanzhi (Radix Polygalae) and Wuweizi (Fructus Schisandrae).
If it is due to excessive rumination, one should specifically nourish the Heart and Spleen, using Guipi Tang (Restore the Spleen Decoction).
If it is due to shortness and scarcity of spirit, one should simultaneously tonify Qi and Blood, using Renshen Yangying Tang (Ginseng Nourishing the Constitution Decoction) administered with Yuanzhi Wan (Polygala Pill).
If it is excess above and deficiency below, use Yangxin Tang (Nourish the Heart Decoction).
If it is deficiency above and excess below, use Longyan Tang (Longan Decoction).
If Heart Fire does not descend and Kidney Water does not ascend, leading to unsettled spirit, use Zhuque Wan (Vermilion Bird Pill).
If there is pre-existing phlegm-fluid retention, use Fuling Tang (Poria Decoction).
If phlegm confuses the orifices of the Heart, use Daotan Tang (Expel Phlegm Decoction) administered with Shouxing Wan (Auspicious Star Pill).
If mental labor and reading lead to spiritual trance, use Anshen Dingzhi Wan (Calm the Spirit and Stabilize Will Pill).
If Heart Qi is insufficient, accompanied by palpitations and amnesia, use Chensha Miaoxiang San (Cinnabar Wonderful Fragrance Powder).
If constitutional endowment is insufficient, leading to vacuous disturbance of spirit and will, use Dingzhi Wan (Stabilize Will Pill) or Kongsheng Zhenzhong Dan (Confucius' Pillow Treasure Elixir).
If the spirit declines due to old age, use Jiajian Guben Wan (Modified Root-Securing Pill).
If blood stasis exists internally, causing a tendency to forget and behavior resembling madness, use Daidang Wan (Substitute Dang Pill).
[Liver-Kidney Syndrome] Liuwei Wan (See Volume 1, Stroke Chapter).
[Heart-Spleen Syndrome] Guipi Tang (See Volume 2, Consumption Chapter).
[Qi-Blood Syndrome] Renshen Yangying Tang (See Volume 2, Consumption Chapter).
[Heat-Irritability Syndrome] Yuanzhi Wan (See this Volume, Epilepsy Chapter).
[Deficiency Below] Yangxin Tang: Renshen (Ginseng), Danggui (Angelica Sinensis), Baizhu (Atractylodes Macrocephala), Dongchun (Tianma and Maidong), Shichangpu (Rhizoma Acori Tatarinowii), Yuanzhi (Radix Polygalae), Fushen (Poria with Hostwood), Niuxi (Achyranthes Bidentata), Shudi (Rehmannia Glutinosa Prepared), Mutong (Akebia Trifoliata Caulis).
[Deficiency Above] Longyan Tang: Renshen (Ginseng), Maidong (Ophiopogon Japonicus), Gancao (Licorice), Chaihu (Bupleurum Chinense), Shengma (Cimicifuga Foetida), Fushen (Poria with Hostwood), Danshen (Salvia Miltiorrhiza), Longyanrou (Longan Aril), Yuanzhi (Radix Polygalae).
[Heart-Kidney Syndrome] Zhuque Wan: Chenxiang (Aquilaria Agallocha Wood, 1 liang), Fushen (Poria with Hostwood, 4 liang), Renshen (Ginseng, 2 liang), honey pills.
[Phlegm-Fluid Syndrome] Fuling Tang: Renshen (Ginseng), Chenpi (Citrus Reticulata Peel), Banxia (Pinellia Ternata), Fuling (Poria), Gancao (Licorice), Xiangfu (Cyperus Rotundus), Yizhi (Alpinia Oxyphylla) (each 1 qian), Wumei (Mume Fruit, 1 piece), Zhuli (Bamboo Sap), Jiangzhi (Ginger Juice) (each 2 chi).
[Phlegm Confusing Orifices] Daotan Tang (See Volume 1, Stroke Chapter).
[Nourishment and Preservation] Shouxing Wan: Renshen (Ginseng), Baizhu (Atractylodes Macrocephala), Gancao (Licorice), Chenpi (Citrus Reticulata Peel), Fuling (Poria), Dihuang (Rehmannia Glutinosa), Shaoyao (Paeonia Lactiflora), Danggui (Angelica Sinensis), Wei (Schisandra Chinensis), Guixin (Cinnamon Twig), Danning (Arisaema Cum Bile), Hupo (Amber), Zhusha (Cinnabar), Yuanzhi (Radix Polygalae), pills made with pig heart blood paste.
[Trance Syndrome] Anshen Dingzhi Wan: Renshen (Ginseng), Baizhu (Atractylodes Macrocephala), Fuling (Poria), Fushen (Poria with Hostwood), Shichangpu (Rhizoma Acori Tatarinowii), Yuanzhi (Radix Polygalae), Maidong (Ophiopogon Japonicus), Zaoren (Ziziphus Jujuba Seed), Niuhuang (Calculus Bovis), Zhusha (Cinnabar), Longyanrou (Longan Aril), honey pills.
[Palpitations Syndrome] Chensha Miaoxiang San (See Volume 2, Epistaxis Chapter).
[Vacuous Disturbance] Dingzhi Wan (See this Volume, Mania and Depression Chapter).
[Spirit Nurturing] Kongsheng Zhenzhong Dan (See this Volume, Mania and Depression Chapter).
[Old Age Syndrome] Jiajian Guben Wan: Shudi (Rehmannia Glutinosa Prepared), Tiandong (Asparagus Cochinchinensis) (each 1.5 liang), Maidong (Ophiopogon Japonicus), Zhigancao (Prepared Licorice), Fuling (Poria) (each 1 liang), Renshen (Ginseng), Shichangpu (Rhizoma Acori Tatarinowii), Yuanzhi (Radix Polygalae), Zhusha (Cinnabar) (each 5 qian), honey pills.
[Blood Stasis Syndrome] Daidang Tang (See Volume 2, Blood Disorders Chapter).