（饱气也，俗作嗳气）
〔仲〕上焦竭，善噫，何谓也？师曰∶上焦受中焦气未和，不能消，是故能噫耳。（经云∶卫
出于上焦。）上焦不归者，噫而酢酸。（经云∶不归不至也。上焦之气不至其部，则物不能传化，
故噫而酢吞。）噫属心脾，及二阳一阴。经云∶心为噫。又云∶太阴所谓上走心为噫者。阴盛
而上走于阳明，阳明络属心为噫，故曰上走心为噫也。又云∶二阳一阴发病，主惊骇背痛，善噫
欠也。
〔仲〕旋复代赭汤 治痞而噫。（方见伤寒痞门。）
〔《本》〕心下蓄积痞闷，或作痛，多噫败卵气，枳壳散主之。
枳壳 白术（各半两） 香附（一两） 槟榔（二钱）
上为细末，每服二钱，米饮调下，日三服，不拘时候。（庞老方。）
〔丹〕宣州人，与前方证皆除，气上筑心膈，噫气稍宽，脉之右关弱短，左关左尺长洪大而数，
此肝有热，宜泻肝补脾。
青皮（一钱） 白术（二钱半） 木通 甘草（二分）
煎下保和丸十五粒，抑青丸二十粒。
噫气，胃中有火有痰。
南星（制） 半夏 软石膏 香附
各等分水煎服。
运气 噫有三∶
一曰，热助心实而噫。经云∶少阴之复，噫哕是也。
二曰，寒攻心虚而噫。经云∶太阳司天，寒淫所胜，善噫。又云∶太阳之复，唾出清水，及
为哕噫是也。
三曰，风攻脾虚而噫。又云∶厥阴在泉，风淫所胜，腹胀善噫是也。
针灸噫独取脾。经云∶脾足太阴之脉，是动则病腹胀，善噫，视盛虚热寒陷下取之也。
〔仲〕寸口脉弱而缓，弱者阳气不足，缓者胃气有余，噫而吞酸，食卒不下，气填于膈上。
〔《脉》〕寸脉紧，寒之实也。寒在上焦，胸中必满而噫。趺阳脉微而涩，微无胃气，涩即伤脾，
寒在膈而反下之，寒积不消，胃微脾伤，谷气不行，食已自噫，寒在胸膈，上虚下实，谷气不通，
为闭塞之病。趺阳脉微涩，及寸脉紧而噫者，皆属寒。（全文见诊条。）太阴中者，腹胀闭，
噫气呕逆。
〔张仲景〕上焦功能衰竭，容易打嗝，这是什么原因呢？老师说：上焦依赖中焦输送的气机，若中焦气机不和，食物无法消化，因此会出现打嗝。（《内经》说：卫气出于上焦。）如果上焦之气不能正常回归本位，就会打嗝并伴有吞酸水。（《内经》说：不归则不至。上焦之气不能到达其所属部位，食物就无法传化，所以出现打嗝和吞酸。）打嗝与心、脾有关，也涉及阳明经和厥阴经。《内经》说：心主打嗝。又说：太阴病证中，气向上走于心导致打嗝的情况，是因为阴气过盛而上行于阳明，阳明的络脉连接心脏从而引起打嗝，所以说气上走于心导致打嗝。又说：阳明和厥阴发病时，主要表现为惊恐、背痛、频繁打嗝和呵欠。
〔张仲景〕旋复代赭汤，治疗痞满兼有打嗝的症状。（该方剂详见《伤寒论》痞满门。）
〔《本草衍义》或相关医籍〕胃脘部积聚痞闷，或者疼痛，多伴有打嗝出败卵臭味，用枳壳散主治。
枳壳、白术（各半两）、香附（一两）、槟榔（二钱）。
以上药物研为细末，每次服用二钱，用米汤调服，每日三次，不限定时间。（庞安时老先生的方子。）
〔朱丹溪〕宣州有一位患者，服用前面的方剂后症状都已消除，但感觉气向上冲击心膈部，打嗝稍感舒缓。诊其脉象，右关脉弱而短，左关和左尺脉长、洪大且数。这是肝有热邪，应当泻肝火、补脾气。
青皮（一钱）、白术（二钱半）、木通、甘草（二分）。
煎药送服保和丸十五粒，抑青丸二十粒。
打嗝，是胃中有火且有痰湿所致。
制南星、半夏、软石膏、香附。
以上药物等量，水煎服。
运气学说认为，打嗝有三种情况：
第一种，热邪助长心火实证而导致打嗝。《内经》说：少阴火气复郁，会出现打嗝和呃逆。
第二种，寒邪攻伐心气虚证而导致打嗝。《内经》说：太阳司天之年，寒气盛行，容易打嗝。又说：太阳之复气发作，会吐出清水，并出现呃逆和打嗝。
第三种，风邪攻伐脾气虚证而导致打嗝。又说：厥阴在泉之年，风气盛行，会出现腹胀和频繁打嗝。
针灸治疗打嗝，独取脾经穴位。《内经》说：足太阴脾经发生病变，会出现腹胀、频繁打嗝，应根据脉气的盛虚、热寒及下陷等情况进行针刺治疗。
〔张仲景〕寸口脉弱而缓，弱脉表示阳气不足，缓脉表示胃气有余（指胃中有滞），表现为打嗝、吞酸，食物突然难以下咽，气堵塞在膈上。
〔《脉经》〕寸脉紧，是寒邪实证的体现。寒邪在上焦，胸中必然胀满并伴有打嗝。趺阳脉微而涩，微脉表示无胃气，涩脉表示伤脾。如果在膈部有寒邪的情况下误用攻下法，会导致寒积不消，胃气微弱、脾脏受伤，谷气运行不畅，进食后自然打嗝。这是因为寒邪在胸膈，上虚下实，谷气不通，形成了闭塞的病证。趺阳脉微涩，以及寸脉紧而伴有打嗝的，都属于寒证。（全文详见诊法条。）太阴病中期，出现腹胀便秘，打嗝呕吐逆气。
( Yi, referring to belching after fullness, is commonly written as "Ai Qi" in vernacular usage.)
[Zhang Zhongjing] When the Upper Jiao (Upper Burner) function declines, frequent belching occurs. What is the reason? The Master said: The Upper Jiao receives Qi from the Middle Jiao (Middle Burner). If the Qi of the Middle Jiao is not harmonized and cannot digest food, belching ensues. (The Classic states: Wei Qi (Defensive Qi) originates from the Upper Jiao.) If the Qi of the Upper Jiao does not return to its proper place, one will belch and experience acid regurgitation. (The Classic states: If it does not return, it does not arrive. When the Qi of the Upper Jiao fails to reach its designated area, food transmission and transformation are hindered, leading to belching and acid swallowing.) Belching is associated with the Heart and Spleen, and involves the Yangming and Jueyin meridians. The Classic states: The Heart governs belching. It also states: In Taiyin disorders, when Qi moves upward to the Heart causing belching, it is because Yin excess moves upward to Yangming; the collaterals of Yangming connect to the Heart, thus causing belching by moving upward to the Heart. Furthermore, it states: When Yangming and Jueyin disorders occur, the main symptoms include fright, back pain, frequent belching, and yawning.
[Zhang Zhongjing] Xuanfu Daizhe Tang (Inula and Hematite Decoction) treats palpitations accompanied by belching. (See this formula in the Palpitations section of Shanghan Lun.)
[Ben Cao Yan Yi or related texts] Accumulation and stagnation in the epigastrium causing distension or pain, often accompanied by belching with a smell of rotten eggs, is primarily treated with Zhike San (Citrus Aurantium Powder).
Zhike (Aurantium Fructus), Baizhu (Atractylodis Macrocephalae Rhizoma) (each 0.5 liang), Xiangfu (Cyperi Rhizoma) (1 liang), Binglang (Arecae Semen) (2 qian).
Grind into fine powder. Take 2 qian each time, mixed with rice water for administration. Take three times daily, without restriction on timing. (Formula from Old Man Pang.)
[Zhu Danxi] A patient from Xuanzhou had all symptoms resolved by the previous formula but felt Qi rushing upward to strike the heart and diaphragm region, with slight relief after belching. His pulse was weak and short at the Right Guan position, while the Left Guan and Left Chi positions were long, surging, large, and rapid. This indicates Heat in the Liver; treatment should involve draining Liver Heat and tonifying the Spleen.
Qingpi (Citri Reticulatae Pericarpium Viride) (1 qian), Baizhu (Atractylodis Macrocephalae Rhizoma) (2.5 qian), Mutong (Akebiae Caulis), Gancao (Glycyrrhizae Radix et Rhizoma) (2 fen).
Decoct and take with Baohé Wan (Preserve Harmony Pill) fifteen pills and Yiqing Wan (Suppress Green Pill) twenty pills.
Belching is caused by Fire and Phlegm in the Stomach.
Zhì Nánxīng (Prepared Arisaematis Rhizoma), Banxia (Pinelliae Rhizoma), Ruǎn Shí Gāo (Gypsum Fibrosum), Xiangfu (Cyperi Rhizoma).
Equal parts, decoct in water and take orally.
According to the Theory of Five Movements and Six Qi, there are three types of belching:
First, Heat assists Heart Excess causing belching. The Classic states: When Shaoyin Fire rebounds, belching and hiccups occur.
Second, Cold attacks Heart Deficiency causing belching. The Classic states: When Taiyang governs the year, excessive Cold leads to frequent belching. It also states: When Taiyang rebound occurs, clear fluid is spat out, along with hiccups and belching.
Third, Wind attacks Spleen Deficiency causing belching. It also states: When Jueyin is in the lower position, excessive Wind causes abdominal distension and frequent belching.
For acupuncture treatment of belching, exclusively select points from the Spleen meridian. The Classic states: When the Foot-Taiyin Spleen Meridian is disturbed, it causes abdominal distension and frequent belching; treat according to the excess or deficiency, heat or cold, and sinking conditions observed in the pulse.
[Zhang Zhongjing] The Cun Kou (Radial artery at the wrist) pulse is weak and slow. Weakness indicates insufficiency of Yang Qi; slowness indicates excess Stomach Qi (stagnation). Symptoms include belching, acid regurgitation, sudden inability to swallow food, and Qi blocking above the diaphragm.
[Mai Jing] A tight pulse at the Cun position indicates an Excess of Cold. With Cold in the Upper Jiao, the chest must be full and accompanied by belching. A faint and choppy pulse at the Fuyang position (posterior tibial artery) indicates no Stomach Qi (faint) and injured Spleen (choppy). If purgatives are incorrectly used when Cold is in the diaphragm, Cold accumulation persists, Stomach Qi becomes weak, and Spleen is injured. Grain Qi fails to circulate, leading to belching after eating. This is due to Cold in the chest and diaphragm, upper deficiency and lower excess, and blocked Grain Qi, resulting in a condition of obstruction. Both a faint and choppy Fuyang pulse and a tight Cun pulse with belching belong to Cold patterns. (Full text see Diagnosis sections.) In mid-stage TAIYIN disease, abdominal distension and constipation occur, accompanied by belching and vomiting/rebellious Qi.