Source 出处 · Taiping Huimin Hejiju Fang · Doses are not given here: they are set by a licensed practitioner for the individual.
Safety. Shen Su Yin is recorded in Taiping Huimin Hejiju Fang. It is the second formula in this batch written for a person who is not strong, and it is the one most likely to be taken without advice, because the situation it describes is so ordinary: an elderly or convalescent person, or someone with a long illness, catches a chill and has cough with phlegm. The formula pairs release with support. Ren shen carries the support; zi su ye and ge gen release the exterior; ban xia, chen pi, fu ling, qian hu and jie geng address phlegm and qi; mu xiang moves; gan cao, sheng jiang and da zao harmonise and steady the middle.
The classical reasoning is the same one that governs Bai Du San, and stating it twice is deliberate: in a deficient person, dispersing alone is held to drain what support remains. What should give a modern reader pause is how precisely that describes the group for whom a chill is least trivial. Older people, people recovering from illness, people with chronic lung, heart, kidney or diabetic disease, pregnant women and people on immunosuppressive treatment are all in the named group, and they are also the group in whom an apparently mild respiratory infection most often is not mild. Several of them have time-limited treatment windows: antiviral therapy for influenza and, for those at highest risk, for COVID-19, has to be started early to do anything. Fever with breathlessness, chest pain, confusion, or a non-blanching rash belongs on an emergency pathway, and so does breathlessness at rest in someone who was walking last week.
Three naming and safety points must be stated. First, mu xiang in this formula is the Asteraceae root: it is not qing mu xiang, the Aristolochia root that contains aristolochic acid and that is no longer carried as an official medicinal. Confusing the two is exactly the kind of error that has caused harm, which is why this library names both. Second, raw ban xia is acrid and strongly irritant to mucous membranes; dispensing practice uses only processed ban xia, and ban xia also appears in the classical list of herbs said to oppose aconite. Third, gan cao carries the risk of apparent mineralocorticoid excess with daily intake. The evidence on ren shen and warfarin is mixed and is reported as mixed. This library does not claim the formula releases the exterior, resolves phlegm, stops cough, or treats colds, influenza, bronchitis or any specific disease.
参苏饮著录于《太平惠民和剂局方》。它是本批第二首为不壮实之人而设的方，也是**最可能在没有任何建议的情况下被自行服用的一首**，因为它描述的情形太平常了：一位老人、一位病后初愈的人、或一位久病之人受了凉，咳嗽有痰。这首方把「解」与「扶」放在一起：人参承担扶正，紫苏叶与葛根解表，半夏、陈皮、茯苓、前胡、桔梗处理痰与气，木香行气，炙甘草、生姜、大枣调和并稳住中焦。
古典论证与败毒散同源，本批有意重复一次：**正气不足者纯用发散，被认为会耗掉仅剩的支撑**。而真正该让今天的读者停下来的是 —— 这段描述恰好落在「受凉最不是小事」的那群人身上。高龄者、病后康复者、有慢性肺病／心脏病／肾病／糖尿病者、孕妇、正在接受免疫抑制治疗者，全都在这句指征里；而他们也恰恰是「看起来轻的呼吸道感染其实不轻」的那群人。其中几类还有**时间窗**：流感的抗病毒治疗，以及高危人群针对 COVID-19 的抗病毒治疗，都必须在早期开始才有用。发热伴气短、胸痛、意识改变，或压之不褪色的皮疹，属于急救路径；一周前还能走路而现在静息即气促，同样属于。
三点命名与安全事项必须说清。其一，本方所用**木香是菊科木香**，**不是青木香** —— 青木香是马兜铃科马兜铃属的根，含马兜铃酸，已不再作为法定药材收载。把两者混为一谈正是曾经造成过伤害的那类错误，故本库两物并写。其二，**生半夏辛烈并强烈刺激黏膜**，调剂实际只用炮制品；且半夏在古典「反乌头」之列。其三，**炙甘草**长期每日摄入可致假性醛固酮增多症（钠水潴留、失钾、升压），与利尿剂、地高辛、糖皮质激素叠加更重。人参与华法林的证据是混杂的，本库写混杂。本库不声称本方能解表、化痰、止咳，或治疗感冒、流感、支气管炎或任何具体疾病。