论曰风口噤者。风寒客于三阳之筋。使筋脉拘急。口噤不开。牙关紧急。若不速治。恐
致他病。以风者善行而数变也。
治中风口噤。颈项筋急。饮食不下。防己汤方
防己（锉） 桂（去粗皮） 麻黄（去根节煎掠去沫焙干） 葛根（锉各二两） 甘草
（炙锉） 防风（去叉锉） 芍药（各一两）
上七味。粗捣筛。每服三钱匕。以水一盏。入生姜半分切。煎取七分。去滓温服。日三
夜一。凡失音不能言者皆治。
治急中风目瞑牙噤。不能下药者。用此散。以中指点散子。揩齿三二十次。在大牙左右
。其口自开。始得下药。开关散方
天南星（生捣为细末） 龙脑（别研）
上二味。各等分研细。五月五日午时合。患者只使一字。至半钱匕。
治中风口噤不开。吹口中。附子散方
附子（炮裂去皮脐）
上一味。捣罗为散。纳管中。斡开口匀吹。令药满喉中并舌下。不可过多。
治中风口噤。闷乱不知人。汤饮不下。吴茱萸汤方
吴茱萸（汤洗七遍炒一两） 豉（炒令微干三两）
上二味。粗捣筛。每服二钱匕。以水一盏半。煎取七分。去滓温服。早夜各二服。
治中风不语。口噤吐痰。颈项筋急。乌梅饮方
乌梅（二七枚并子椎碎） 菝 （碎锉椎一两半） 白矾（生用一两）
上三味。先以水一升。煎菝 根。取三合去滓别盛。又别以水一升。煮乌梅至三合。去
滓
白
治中风口噤不语。不知人。饮食不下。独活饮方
独活（去芦头一两） 葛根（锉） 甘草（炙各半两）
上三味。粗捣筛。每服四钱匕。以水一盏半。入生姜半分切。煎取七分。去滓热服。口
噤服药不下。斡口开灌之、效。日夜四五服。
治中风口噤。及妇人洗头中风。牙关紧急。缓颊散方
天南星（一枚重半两者用酒同生姜自然汁浸四十九日切破焙干） 半夏（亦如天南星浸
切焙干）
（研以上各半两）
上一十味。捣罗六味为细末。入雄黄以下四味同研匀。每服温酒调下半钱匕。如小儿急
慢惊风。薄荷汤调下一字。
治中风牙关紧急。遍身强硬。附子散方
附子（一枚重一两者慢火炮裂去皮脐） 白附子（炮裂一分）
上二味。为细散。每服一钱匕。温酒调下。三服见效。
治一切急风。口噤不开。白矾散方
白矾（半两） 盐花（一分）
上二味。并细研。以手点揩牙根下。更将半钱匕。以绵裹安牙尽头。
治风口噤。牙关不开。海带散方
海带（炒半两） 乌梅肉 天南星（生各一两） 麝香（二分别研后入）
上四味。为细散。入瓷盒内。勿令透气。如患急。以半钱匕。于腮里牙关上揩。便自开
口。立效。
治中风牙关紧急方
甘草（比中指节截作五截于生油内浸过炭上火炙候油入甘草用）
上一味。以物斡开牙关。令咬定甘草。可如人行一里时候。又换甘草一截。后灌药极效
治中风或吐泻。牙关紧噤。下药不能。白神散方
白梅末（不拘多少）
上一味。将揩牙立开。盖酸能收敛。自然齿骨易开也。
治中风口噤不开。独活酒方
独活（去芦头一两）
上一味。锉。以清酒二升。煎取一升。取大豆五合。熬令皮拆声 绝。取前酒热投于豆
中。搅匀密盖。经一食顷。去滓。温服三大合。口噤即灌之。日三。
治风涎发动口噤不开方
半夏（半枚） 五灵脂（一皂子大） 胆矾末（一字）
上三味。同乳钵内研如粉。滴水和为丸。如鸡冠花子大。每用三丸。于瓷盏内。用指甲
研细
外更
以
解
后
草
怪
能将息忌慎为妙。其药须是临治时旋合。不可预合也。
治中风口噤不语。忽然仆地。涎潮壅塞。金虎丹方
牛黄（研） 丹砂（研） 粉霜（研） 腻粉（研） 雄黄（研） 龙脑（研） 铅白
霜（研各一两）
白矾（研一两半）
上一十三味。捣研为末。再同研匀。炼蜜和丸。如樱桃大。每服一丸。新汲水化下。伤
寒伏热
服。治
治风寒客于三阳经。筋脉拘强。口噤不开。牙关紧急。乌犀丸方
犀角屑（半两） 天麻 白附子（炮各一两） 白僵蚕（炒） 半夏（汤浸七遍以去皮
生姜半
根节） 独活（去芦头） 当归（切焙） 晚蚕砂（微炒） 麝香（研） 干蝎（去土微炒
各半两）
上一十三味。捣研为末。再同研匀。炼蜜和丸。梧桐子大。每服十丸至十五丸。温酒下
。不拘时候服。治中风口噤。或伤风湿。身体 痹。大豆酒方
大豆（三升）
上一味。炒令极熟。以清酒五升沃之。可得二升。旋旋温服。令少汗出身微润即瘥。
Commentary states: Fengkou Jin (a syndrome characterized by inability to open the mouth due to wind pathogen invasion) occurs when wind-cold pathogens lodge in the sinews of the Three Yang meridians, causing spasm and tightness of the sinews and vessels. This results in an inability to open the mouth (Jin) and tightness of the jaw. If not treated promptly, it may lead to other diseases, as wind pathogens are agile and change rapidly.
Formula Fangji Tang for treating Zhongfeng (Wind Stroke) with Fengkou Jin, stiffness of the neck and nape, and inability to swallow food:
Puerariae Radix (Gegen, 葛根), Stephaniae Tetrandrae Radix (Fangji, 防己), Cinnamomi Ramulus (Guizhi, 桂), Ephedrae Herba (Mahuang, 麻黄), Paeoniae Radix Alba (Baishao, 芍药), Atractylodis Rhizoma (Cangzhu? No, text says Fangfeng, 防风 - Saposhnikoviae Radix), Glycyrrhizae Radix et Rhizoma (Gancao, 甘草).
Preparation: Coarsely crush and sieve the seven ingredients. Take three qianbi per dose. Add one zhan of water and half a qianbi of sliced fresh ginger. Decoct until seven-tenths remain. Strain and take warm. Three times daily and once at night. It treats all cases of aphonia and inability to speak.
For acute Zhongfeng presenting with closed eyes and locked jaw, making oral medication impossible, use this powder. Dip the middle finger into the powder and rub the teeth twenty to thirty times on both sides of the large molars. The mouth will naturally open, allowing medication to be administered. Formula Kaiguan San (Opening the Lock Powder):
Arisaematis Rhizoma (Tiannanxing, 天南星), Borneolum Syntheticum (Longnao, 龙脑).
Preparation: Grind equal parts into fine powder. Prepare on the noon hour of the fifth day of the fifth lunar month. Use one zi to half a qianbi per application.
Formula Fuzi San (Aconite Powder) for treating Zhongfeng with Fengkou Jin, insufflated into the mouth:
Aconiti Lateralis Radix Praeparata (Fuzi, 附子).
Preparation: Roast until cracked, remove skin and umbilicus. Grind into powder, place in a tube. Pry open the mouth and insufflate evenly, ensuring the medicine fills the throat and under the tongue. Do not use excessive amounts.
Formula Wuzhuyu Tang for treating Zhongfeng with Fengkou Jin, restlessness, unconsciousness, and inability to swallow liquids:
Evodiae Fructus (Wuzhuyu, 吴茱萸), Sojae Semen Preparatum (Chidouchi, 豉).
Preparation: Coarsely crush and sieve. Take two qianbi per dose. Add one and a half zhan of water. Decoct until seven-tenths remain. Strain and take warm. Twice in the morning and twice at night.
Formula Wumei Yin (Dark Plum Drink) for treating Zhongfeng with aphasia, Fengkou Jin, expectoration, and neck stiffness:
Pruni Mume Fructus (Wumei, 乌梅), Smilacis Glabrae Rhizoma (Baqia, 菝葜), Alumen (Baifan, 白矾).
Preparation: First, decoct Smilacis Glabrae Rhizoma in one sheng of water to obtain three he of liquid; strain and reserve separately. Then, decoct Pruni Mume Fructus in another one sheng of water to obtain three he; strain.
Formula Duhuo Yin for treating Zhongfeng with Fengkou Jin, aphasia, unconsciousness, and inability to eat or drink:
Angelicae Pubescentis Radix (Duhuo, 独活), Puerariae Radix (Gegen, 葛根), Glycyrrhizae Radix et Rhizoma (Gancao, 甘草).
Preparation: Coarsely crush and sieve. Take four qianbi per dose. Add one and a half zhan of water and half a qianbi of sliced fresh ginger. Decoct until seven-tenths remain. Strain and take hot. If unable to swallow due to locked jaw, pry open the mouth and administer. Effective. Four to five doses daily.
Formula Huanjie San for treating Zhongfeng with Fengkou Jin, and wind-stroke during hair washing in women, resulting in jaw tightness:
Arisaematis Rhizoma (Tiannanxing, 天南星), Pinelliae Rhizoma (Banxia, 半夏).
*(Note: The original text mentions "ten ingredients" but only lists these two explicitly in the preparation description before referencing "four ingredients below Arsenic". Based on strict extraction without speculation, only Tiannanxing and Banxia are explicitly detailed as processed for this specific formula step, though others like Realgar, Calomel, Cinnabar, and Musk are implied by context of similar formulas or missing text. However, adhering to "no speculation", we list only those clearly attributed in the visible text structure or standard interpretation of such fragments if obvious. Given the constraint, I will list the explicit ones: Tiannanxing, Banxia.)*
Formula Fuzi San for treating Zhongfeng with jaw tightness and generalized rigidity:
Aconiti Lateralis Radix Praeparata (Fuzi, 附子), Typhonii Rhizoma (Baifuzi, 白附子).
Preparation: Grind into fine powder. Take one qianbi per dose, mixed with warm wine. Effective after three doses.
Formula Baifan San for treating all acute winds with inability to open the mouth:
Alumen (Baifan, 白矾), Halitum (Yanhua, 盐花).
Preparation: Grind finely together. Apply with finger to the gum line. Wrap half a qianbi in cotton and place at the end of the teeth.
Formula Haitai San for treating Fengkou Jin and inability to open the jaw:
Laminariae Thallus (Haidai, 海带), Pruni Mume Fructus (Wumei Rou, 乌梅肉), Arisaematis Rhizoma (Tiannanxing, 天南星), Moschus (Shexiang, 麝香).
Preparation: Grind into fine powder, store in a porcelain box airtight. For emergencies, apply half a qianbi to the cheek and over the jaw to rub; the mouth opens immediately.
Formula for treating Zhongfeng with jaw tightness:
Glycyrrhizae Radix et Rhizoma (Gancao, 甘草).
Preparation: Cut into segments slightly larger than the middle finger joint. Soak in raw sesame oil, then roast over charcoal until oil penetrates. Pry open the jaw and have the patient bite down on the licorice root for about the time it takes to walk one li. Replace with a new segment, then administer medication. Highly effective.
Formula Baishen San for treating Zhongfeng with vomiting/diarrhea, jaw tightness, and inability to take oral meds:
Pruni Mume Fructus Powder (Baimei Mo, 白梅末).
Preparation: Rub onto teeth to open them immediately. Sour flavor causes contraction, facilitating the opening of the jaw bones.
Formula Duhuo Jiu for treating Zhongfeng with Fengkou Jin:
Angelicae Pubescentis Radix (Duhuo, 独活).
Preparation: Crush. Decoct in two sheng of clear wine to obtain one sheng. Stir-fry five he of soybeans until skins crack. Pour the hot wine onto the beans, cover tightly. After one meal's time, strain. Take three he warm. Administer via gavage if jaw is locked. Three times daily.
Formula for treating Wind-Phlegm activation causing Fengkou Jin:
Pinelliae Rhizoma (Banxia, 半夏), Trogopterori Faeces (Wulingzhi, 五灵脂), Chalcanthitis (Danfan, 胆矾).
Preparation: Grind in a mortar to powder consistency. Mix with water to form pills the size of cockscomb seeds. Use three pills, grind fine in a porcelain cup with fingernails. *(Text fragment follows regarding caution and immediate preparation).*
Formula Jinhudan for treating Zhongfeng with Fengkou Jin, aphasia, sudden collapse, and phlegm obstruction:
Bovaris Calculus (Niuhuang, 牛黄), Cinnabaris (Dansha, 丹砂), Calomelas (Fanshuang, 粉霜), Calomelas/Niter mixture? (Nifen, 腻粉), Realgar (Xionghuang, 雄黄), Borneolum Syntheticum (Longnao, 龙脑), Plumbi Subcarbonas (Qianbaisuang, 铅白霜), Alumen (Baifan, 白矾).
Preparation: Grind thirteen ingredients into powder, mix uniformly. Form pills with refined honey, size of a cherry. Take one pill dissolved in fresh well water. *(Text fragment: Treats latent heat in Shanghan).*
Formula Wuxi Wan for treating wind-cold lodging in Three Yang meridians, causing stiff sinews, Fengkou Jin, and jaw tightness:
Rhinocerotis Cornu (Xijiao, 犀角), Gastrodiae Rhizoma (Tianma), Typhonii Rhizoma (Baifuzi, 白附子), Bombyx Batryticatus (Baijiangcan), Pinelliae Rhizoma (Banxia, 半夏), Angelicae Pubescentis Radix (Duhuo, 独活), Angelicae Sinensis Radix (Danggui, 当归), Bombyx Batryticatus residue? (Wancansha, 晚蚕砂), Moschus (Shexiang, 麝香), Scorpio (Ganye, 干蝎).
Preparation: Grind thirteen ingredients into powder, mix uniformly. Form pills with refined honey, size of paulownia seeds. Take 10-15 pills with warm wine at any time.
Formula Dayou Jiu for treating Zhongfeng with Fengkou Jin, wind-dampness injury, and body bi-syndrome:
Sojae Semen (Daydou, 大豆).
Preparation: Stir-fry soybeans until very cooked. Pour five sheng of clear wine over them. Obtain two sheng of liquid. Take warm slowly. Induce slight sweating; recovery ensues when the body is slightly moist.