病在胸膈以上者先食后服药病在心腹以下者先服药而后食病在四肢血脉及下部者宜空腹
而在旦病在头目骨髓者宜饱满而在夜虽食前食后亦停少顷然后服药食不宜与药并行则药力稍
为混滞故也汤液云药气与食气不欲相逢食气稍消则服药药气稍消则进食所谓食先食后盖有义
在其中也又有酒服者饮服者冷服者暖服者服汤有疏有数者煮汤有生有熟者各有次第并宜详审
而勿略焉
清热汤宜凉服如三黄汤之类消暑药宜冷服如香薷饮之类散寒药宜热服如麻黄汤之类温中
药宜熟而热补中药皆然利下药宜生而温如承气汤之类
病在上者不厌频而少病在下者不厌顿而多少服则滋荣于上多服则峻补于下
凡云分再服三服者要令势力相及并视人之强弱羸瘦病之轻重为之进退增减不必局于方说
则活泼泼地也又云 时周时也从今旦至明旦亦有止一宿者
服柴胡忌牛肉 服茯苓忌醋
服黄连桔梗忌猪肉 服乳石忌参术犯者死
服丹石不可食蛤蜊腹中结痛
服大黄巴豆同剂反不泻人
服皂矾忌荞麦面 服天门冬忌鲤鱼
服牡丹皮忌胡荽 服常山忌葱
服半夏菖蒲忌饴糖羊肉
服白术苍术忌雀蛤肉青鱼 胡荽大蒜桃李
服鳖甲忌苋菜马齿苋尤甚
服商陆忌犬肉 服地黄忌萝卜
服细辛忌生菜 服甘草忌菘菜
服粟壳忌醋 服芫花甘遂忌盐忌甘草
服荆芥忌驴马肉黄颡鱼
服柿蒂忌蟹犯者木香汤能解
服巴豆忌芦笋 服牛膝忌牛肉牛乳
服蜜及蜜煎果食忌鱼
服藜芦忌狐狸肉
若疮毒未愈不可食生姜鸡子犯之则肉长突出作块而白
凡服药不可杂食肥猪犬肉油腻羹脍腥臊陈臭诸物
凡服药不可多食生蒜胡荽生葱诸果诸滑滞之物
凡服药不可见死尸产妇淹秽等事
疾病位于胸膈以上的，应当先吃饭后服药；疾病位于心腹以下的，应当先服药后吃饭；疾病位于四肢血脉及身体下部的，适宜空腹服用。
而在早晨（旦），如果疾病位于头目骨髓，适宜在饱食之后（夜）服用；即使是饭前或饭后，也应当稍作停顿，然后再服药。食物不应当与药物同时服用，这是因为药力与食气相互混杂会导致运行滞涩的缘故。《汤液经》说：药气与食气不希望相遇。待食气稍微消散后再服药，待药气稍微消散后再进食。所谓“食前”或“食后”，其中蕴含着深意。
又有用酒送服、用水送服、冷服、暖服的区别；服用汤剂有疏缓与频数的不同；煎煮汤剂有生药与熟药之分。这些都有各自的次序，都应当详细审察而不可忽略。
清热类的汤剂适宜凉服，如三黄汤之类；消暑类的药物适宜冷服，如香薷饮之类；散寒类的药物适宜热服，如麻黄汤之类；温中类的药物适宜煮熟后热服，补中类的药物都是如此；利下类的药物适宜生用且温热服用，如承气汤之类。
病位在上部的，不厌其烦地少量多次服用；病位在下部的，不厌恶一次性顿服且剂量较大。少量多次服用则能滋养上部的正气；大量顿服则能峻猛地补益下部。
凡是说分两次或三次服用的，要使药效力量能够衔接，并根据病人的强弱、消瘦程度以及病情的轻重来灵活进退增减，不必拘泥于方书的说法，这样才能活泼灵动。又说“时周时从”，指从今天早晨到明天早晨，也有只经过一夜的。
服用柴胡时忌讳食用牛肉；服用茯苓时忌讳食用醋。
服用黄连、桔梗时忌讳食用猪肉；服用乳石时忌讳与人参、白术同服，犯此禁忌会致死。
服用丹石类药物时不可食用蛤蜊，否则会导致腹中结聚疼痛。
大黄与巴豆同用一剂，反而不能使人腹泻。
服用皂矾时忌讳荞麦面；服用天门冬时忌讳鲤鱼。
服用牡丹皮时忌讳胡荽（香菜）；服用常山时忌讳葱。
服用半夏、菖蒲时忌讳饴糖和羊肉。
服用白术、苍术时忌讳雀肉、蛤肉、青鱼、胡荽、大蒜、李子、桃子。
服用鳖甲时忌讳苋菜和马齿苋，尤其是马齿苋危害更大。
服用商陆时忌讳犬肉；服用地黄时忌讳萝卜。
服用细辛时忌讳生菜；服用甘草时忌讳菘菜（白菜）。
服用粟壳时忌讳醋；服用芫花、甘遂时忌讳盐，也忌讳甘草。
服用荆芥时忌讳驴马肉和黄颡鱼。
服用柿蒂时忌讳蟹，若犯了此禁忌，木香汤可以解救。
服用巴豆时忌讳芦笋；服用牛膝时忌讳牛肉和牛乳。
服用蜂蜜及蜜煎果食时忌讳鱼类。
服用藜芦时忌讳狐狸肉。
如果疮毒尚未痊愈，不可食用生姜和鸡蛋，触犯后会导致肌肉生长突出形成肿块并呈白色。
凡是服药期间，不可杂食肥猪、狗肉、油腻羹汤、生鱼片、腥臊气味、陈旧腐臭等各种食物。
凡是服药期间，不可多食生蒜、胡荽、生葱以及各种水果、滑腻滞气的食物。
凡是服药期间，不可见到死尸、产妇、污秽等事物。
If the disease is located above the chest and diaphragm, one should eat first and then take medicine; if the disease is located below the heart and abdomen, one should take medicine first and then eat; if the disease is located in the four limbs, blood vessels, or the lower part of the body, it is suitable to take medicine on an empty stomach.
In the morning (dan), if the disease is located in the head, eyes, or bone marrow, it is suitable to take medicine after a full meal (ye); whether before or after meals, one should pause for a moment before taking medicine. Food should not be taken simultaneously with medicine because the medicinal power and food qi will mix and cause stagnation. The *Tang Jing* states: The qi of medicine and the qi of food do not wish to meet. Take medicine after the food qi has slightly dissipated, and take food after the medicine qi has slightly dissipated. There is profound meaning in "before eating" or "after eating."
There are also distinctions between taking medicine with wine, with water, cold administration, and warm administration; there are differences in the frequency of taking decoctions (sparse vs. frequent); and there are distinctions in boiling decoctions using raw versus cooked herbs. Each has its own sequence and must be carefully examined without omission.
Heat-clearing decoctions are suitable for cool administration, such as Sanhuang Tang (Three-Yellow Decoction); summer-heat-resolving medicines are suitable for cold administration, such as Xiangru Yin (Elsholtzia Drink); cold-dispelling medicines are suitable for hot administration, such as Mahuang Tang (Ephedra Decoction); middle-warming medicines are suitable for hot administration after being thoroughly cooked, and middle-tonifying medicines are all like this; purgative/laxative medicines are suitable for raw administration and warm temperature, such as Chengqi Tang (Chengqi Decoction).
For diseases located in the upper part, frequent but small doses are preferred; for diseases located in the lower part, large single doses are acceptable. Small frequent doses nourish the righteous qi in the upper part; large single doses vigorously tonify the lower part.
Whenever it says to divide into two or three doses, the medicinal strength should be continuous, and adjustments should be made based on the patient's strength, emaciation, and the severity of the illness, rather than rigidly adhering to the prescriptions, so that the treatment remains flexible and dynamic. It also mentions "time cycles," referring to periods from one morning to the next morning, or sometimes just overnight.
When taking Chaihu (Bupleurum Root), avoid beef. When taking Fuling (Poria), avoid vinegar.
When taking Huanglian (Coptis Rhizome) and Jiegeng (Platycodon Root), avoid pork. When taking Rushi (Mineral Drugs), avoid Ginseng and Baizhu (Atractylodes Macrocephala Rhizome); violating this taboo can be fatal.
When taking Danshi (Cinnabar/Mineral Pills), do not eat clams, as this may cause abdominal pain due to knotting.
Using Dahuang (Rhubarb Rhizome) and Badou (Croton Seed) together in one dose may反而 fail to induce diarrhea.
When taking Zaojian (Vitriol), avoid buckwheat noodles. When taking Tianmendong (Asparagus Root), avoid carp.
When taking Mudanpi (Moutan Cortex), avoid Huisu (Coriander). When taking Changshan (Dichroa Root), avoid scallions.
When taking Banxia (Pinellia Tuber) and Changpu (Acorus Rhizome), avoid Yitang (Maltose) and mutton.
When taking Baizhu (Atractylodes Macrocephala Rhizome) and Canshu (Atractylodes Lancea Rhizome), avoid sparrow meat, clam meat, green fish, Huisu (Coriander), garlic, plums, and peaches.
When taking Biejia (Tartar Testudo Carapace), avoid Amaranth and Purslane, especially Purslane which is particularly harmful.
When taking Shanglu (Phytolacca Root), avoid dog meat. When taking Dihuang (Rehmannia Root), avoid radishes.
When taking Xixin (Asarum Root), avoid raw vegetables. When taking Gancao (Licorice Root), avoid Songcai (Chinese Cabbage).
When taking Sukeshell (Poppy Shell), avoid vinegar. When taking Yuanhua (Kadua Flower) and Gansui (Euphorbia Lathyris Root), avoid salt and Gancao (Licorice Root).
When taking Jingjie (Schizonepeta Spike), avoid donkey/horse meat and Yellow Catfish.
When taking Shidi (Persimmon Calyx), avoid crabs. If this taboo is violated, Muxiang Tang (Costus Decoction) can resolve it.
When taking Badou (Croton Seed), avoid reed shoots. When taking Niuxi (Achyranthes Root), avoid beef and cow's milk.
When taking Honey or honey-preserved fruits, avoid fish.
When taking Lilu (Veratrum Root), avoid fox meat.
If sores and toxins have not yet healed, avoid consuming ginger and eggs; violating this causes flesh to grow protruding into lumps and turn white.
Generally, while taking medicine, one must not consume fatty pork, dog meat, greasy soups, sashimi, pungent/foul-smelling foods, or any stale and rotten items.
Generally, while taking medicine, one must not consume excessive amounts of raw garlic, coriander, raw scallions, various fruits, or slippery/stagnating foods.
Generally, while taking medicine, one must not encounter sights of dead bodies, childbirth, or filth.