忌鲤鱼。
辛，温，无毒。发表散寒，下气去胀，消痰和血，驱风定喘。利大小肠，解鱼蟹毒。有
通心
利肺之能，擅开胃益脾之长。温中止痛亦效，安胎顺气最灵。发表宜叶，安胎用梗。
在处有之，或下种栽莳，或宿子自生。其茎方，叶圆而尖，四面锯齿，背面皆紫者良。
咳逆短气，同台参煎服。（验方第一。）
乳痈肿痛，煎汤服并捣敷。（第二。）
食蟹中毒，煎汁服之。（第三。）
蛇伤人，捣叶敷之。（第四。）
疯犬咬，嚼叶敷之。（第五。）
损伤血出，以叶蘸所出血， 烂敷之，愈后无瘢。甚妙。（第六。）
金疮出血，以嫩叶同桑叶捣贴。（第七。）
诸失血，熬膏入赤小豆，炒末丸服。（第八。）
霍乱未吐泻，胀满，水煎服。（第九。）
劳复食复欲死，煎服。（第十。）
伤寒气喘，水煎服。（十一。）
感寒上气，同陈皮服。（十二。）
炒用。
辛，温，无毒。与叶同功，降气开郁，消痰定喘。利二便而破症结，止霍乱而定呕吐。
气虚
少者勿用。
梦中失精，熬杵酒下。（验方第一。）
痰喘咳逆短气，水研取汁煮粥服。（第二。）
顺气利肠，同麻仁滤引作粥食。（第三。）
苏子降气汤 苏子 陈皮 浓朴 前胡 肉桂 半夏 当归 甘草 姜 枣
水煎服。治气不升降，上盛下虚，痰涎壅盛，喘促气满咳嗽。（诸方第一。）
忌与鲤鱼同食。
味辛，性温，无毒。具有发散表邪、驱散寒邪的功效，能降气消除胀满，化解痰湿、调和血液，祛除风邪、平息喘息。通利大小肠，解除鱼蟹中毒。具备通达心脉、利肺的功能，擅长开胃健脾。温中止痛效果显著，安胎顺气最为灵验。发散表邪宜用苏叶，安胎则用苏梗。
各地均有生长，有的下种栽培，有的宿子自然萌发。其茎呈方形，叶片圆形且尖端，边缘有四面锯齿，背面颜色发紫的为佳品。
咳嗽气逆、呼吸短促，与人参一同煎煮服用。（验方第一。）
乳痈（急性乳腺炎）红肿疼痛，煎汤内服并捣碎外敷。（第二。）
食用螃蟹中毒，煎汁服用。（第三。）
被蛇咬伤，捣烂叶片外敷。（第四。）
疯狗咬伤，嚼碎叶片外敷。（第五。）
外伤出血，用叶片蘸取流出的血液，捣烂后敷于患处，痊愈后不留疤痕。非常奇妙。（第六。）
金创（金属利器造成的创伤）出血，用嫩叶与桑叶一同捣碎贴敷。（第七。）
各种失血证，熬制成膏加入赤小豆，炒成粉末制丸服用。（第八。）
霍乱尚未出现呕吐腹泻，但腹部胀满，水煎服用。（第九。）
劳复（病后因劳累复发）或食复（病后因饮食不当复发）导致危重，煎服。（第十。）
伤寒引起的气喘，水煎服用。（第十一。）
感受寒邪导致气机上逆，与陈皮一同服用。（第十二。）
炒制后使用。
味辛，性温，无毒。功效与苏叶相同，能降气开郁，化痰平喘。通利二便并破除症结，止霍乱、定呕吐。
气虚者慎用。
梦中遗精，熬煮后研末，酒送服。（验方第一。）
痰喘咳嗽、气逆短促，用水研磨取汁，煮粥服用。（第二。）
顺气利肠，与火麻仁一同过滤取汁做粥食用。（第三。）
苏子降气汤：苏子、陈皮、厚朴、前胡、肉桂、半夏、当归、甘草、生姜、大枣。
水煎服用。治疗气机升降失常，上盛下虚，痰涎壅盛，喘促气满咳嗽。（诸方第一。）
Avoid consuming with carp.
Pungent, warm, non-toxic. It releases the exterior and disperses cold, directs qi downward to relieve distension, resolves phlegm and harmonizes blood, expels wind and calms asthma. It promotes urination and defecation, and resolves fish and crab toxicity. It possesses the ability to unblock the heart and benefit the lungs, and excels in opening the stomach and strengthening the spleen. It is effective in warming the middle and relieving pain, and is most efficacious in calming the fetus and regulating qi. For releasing the exterior, leaves are preferred; for calming the fetus, stems are used.
It grows everywhere, either sown and cultivated or self-sown from overwintering seeds. Its stems are square, leaves are round and pointed with serrated edges on all four sides; those with purple undersides are of good quality.
For cough with rebellious qi and shortness of breath, decoct together with Renshen (Ginseng Root) and take orally. (Verified Formula No. 1.)
For mastitis with swelling and pain, decoct and take orally, and apply externally as a poultice made by crushing the herb. (No. 2.)
For food poisoning from crabs, decoct and take the juice. (No. 3.)
For snake bites, crush the leaves and apply externally. (No. 4.)
For bites from mad dogs, chew the leaves and apply externally. (No. 5.)
For traumatic injury with bleeding, dip the leaves into the flowing blood, crush them, and apply to the wound; healing occurs without scarring. This is very excellent. (No. 6.)
For metal weapon injuries with bleeding, crush fresh leaves together with Mulberry Leaves (Sangye) and apply as a patch. (No. 7.)
For various types of hemorrhage, simmer into an extract, add Adzuki Beans (Chixiaodou), stir-fry into powder, and take as pills. (No. 8.)
For cholera-attack before vomiting or diarrhea occurs, accompanied by abdominal fullness, decoct in water and take. (No. 9.)
For severe relapse due to overexertion or improper diet, decoct and take. (No. 10.)
For asthma caused by Cold Damage (Shanghan), decoct in water and take. (No. 11.)
For rebellious qi due to cold invasion, take together with Chenpi (Aged Tangerine Peel). (No. 12.)
Use after stir-frying.
Pungent, warm, non-toxic. It has similar functions to the leaves: it directs qi downward, opens depression, resolves phlegm, and calms asthma. It promotes bowel movements and urination, breaks up masses, stops cholera-attack, and arrests vomiting.
Contraindicated for those with qi deficiency.
For nocturnal emission during dreams, simmer, grind into powder, and take with wine. (Verified Formula No. 1.)
For phlegm-asthma, cough with rebellious qi, and shortness of breath, grind with water to extract juice, cook into porridge, and take. (No. 2.)
To regulate qi and promote intestinal movement, filter Huomaren (Hemp Seed) with water to make porridge and eat. (No. 3.)
Suzi Jiangqi Tang (Perilla Fruit Decoction to Direct Qi Downward): Suzi (Perilla Fruit), Chenpi (Aged Tangerine Peel), Houpo (Magnolia Bark), Qianhu (Peucedani Radix), Rougui (Cinnamon Bark), Banxia (Pinellia Tuber), Danggui (Angelica Sinensis Root), Gancao (Licorice Root), Shengjiang (Fresh Ginger), Dazao (Jujube).
Decoct in water and take. It treats disorders of qi ascending and descending, excess above and deficiency below, copious salivary phlegm, panting, chest fullness, and cough. (General Formulas No. 1.)