部份中文L-羧甲司坦处方资料（仅供参考）
英文名：L-Carbocisteine
商品名：C-Cysten Tablets
中文名：L-羧甲司坦片
生产商：鹤原制药 
药品简介
C-Cysten（L-Carbocisteine，左旋半胱氨酸）C-半胱氨酸是粘液溶解剂，可降低痰液粘度。它减少了痰液的厚度，使咳嗽更加容易。
Ｃ-チステン錠250mg／Ｃ-チステン錠500mg／Ｃ-チステン細粒50% 
药效分类名称
气道粘液控制/粘膜归一化剂
批准日期：2008年6月
商標名
C-Cysten Tablets 250mg
C-Cysten Tablets500mg
C-Cysten Fine Granules50%
一般名：
Ｌ-カルボシステイン（L-Carbocisteine）
化学名：
(2R)-2-Amino-3-carboxymethylsulfanylpropanoic acid
分子式：
C5H9NO4S
分子量：
179.19
構造式：
性状：
L-碳半胱氨酸是白色结晶性粉末，无味，微酸。
它极难溶于水，几乎不溶于乙醇（95）。
溶于稀盐酸或氢氧化钠测试溶液。
熔点：约186℃（分解）
处理注意事项
稳定性测试
作为使用最终包装产品的长期储存测试（室温，3年）的结果，证实了在正常的市场分布下，C味精微粒50％10）可以稳定3年。
*由于使用最终包装产品（C-Histen片剂250mg11）和C-Histen片剂500mg12）进行的加速测试（40°C，相对湿度75％，6个月）在正常市场销售下应稳定3年。
药效药理
它抑制了长期吸入亚硫酸盐气体的大鼠中观察到的支气管粘液细胞中一种酸性糖蛋白-磺粘菌素的增加，以及支气管粘液细胞中所含唾液粘蛋白​​的减少。 标准化这些痰中的粘蛋白含量比以促进痰的产生。 通过吸入大鼠的亚硫酸气体，它还抑制了纤毛在气管和支气管表面上的积累和消失，并抑制了支气管粘膜中粘液分泌细胞的增生，从而表现出祛痰作用。
适应症
以下疾病的祛痰药
上呼吸道炎症（咽炎，喉炎），急性支气管炎，支气管哮喘，慢性支气管炎，支气管扩张，肺结核，慢性鼻窦炎引流。
用法与用量
作为L-碳半胱氨酸，通常成人每天一次500mg（C-组烯片250mg 2片，C-组烯片500mg 1片，C-组烯细颗粒50％1g），每天口服3次。剂量可以根据年龄和症状进行调整。
包装
C-tisten片剂
250毫克：（PTP）100片，1000片，6000片、（玫瑰）1200片
500毫克：（PTP）100片，1000片
细颗粒50％
100g，1000g，1g（1包）x 1200包
制造商和销售商
鹤原制药有限公司
注：以上中文处方资料不够完整，使用者以原处方资料为准。
完整说明资料附件：
https://www.info.pmda.go.jp/go/pack/2233002C1054_1_10/?view=frame&style=SGML&lang=ja
C-Cysten Tablets 250mg（L-Carbocisteine）
Brand name: C-Cysten Tablets 250mg
　Active ingredient: L-Carbocisteine
　Dosage form: white tablet, diameter: approx. 9.1 mm, thickness: approx. 5.0 mm
　Print on wrapping: C-チステン錠,250mg,TSU270,C-CYSTEN
Effects of this medicine
This is an agent to regulate airway mucus and normalize mucosa. It suppresses hyperplasia of mucus secretion cells in bronchial mucosa and shows expectoration effect to ease excreting sputum and runny nose and relieve nasal congestion.
It is usually used for expectoration in upper airway inflammation/acute bronchitis/bronchial asthma/chronic bronchitis/bronchiectasis/pulmonary tuberculosis, and pus discharge of chronic sinusitis.
Before using this medicine, be sure to tell your doctor and pharmacist
•If you have previously experienced any allergic reactions (itch, rash, etc.) to any medicines.
•If you are pregnant or breastfeeding.
•If you are taking any other medicinal products. (Some medicines may interact to enhance or diminish medicinal effects. Beware of over-the-counter medicines and dietary supplements as well as other prescription medicines.)
Dosing schedule (How to take this medicine)
•Your dosing schedule prescribed by your doctor is <<to be written by a healthcare professional>>
•In general, for adults, take 2 tablets (500 mg of the active ingredient) at a time, 3 times a day. The dosage may be adjusted according to disease, age and symptoms of the patient. Strictly follow the instructions.
•If you miss a dose, take a dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and follow your regular dosing schedule. You should never take two doses at one time.
•If you accidentally take more than your prescribed dose, consult with your doctor or pharmacist.
•Do not stop taking this medicine unless your doctor instructs you to do so.
Precautions while taking this medicine
• Possible adverse reactions to this medicine
The most commonly reported adverse reactions include loss of appetite, diarrhea, abdominal pain, rash, eczema, erythema, edema, fever and respiratory distress. If any of these symptoms occur, consult with your doctor or pharmacist.
The symptoms described below are rarely seen as initial symptoms of the adverse reactions indicated in brackets. If any of these symptoms occur, stop taking this medicine and see your doctor immediately.
•bloodshot eyes and rash/flare/blister of skin or around mouth, fever, sore throat [mucocutaneous-ocular syndrome, toxic epidermal necrolysis]
•malaise, loss of appetite, yellowing of the skin and the whites of the eyes [liver dysfunction, jaundice]
•respiratory distress, edema, hives [shock, anaphylactoid symptoms]
The above symptoms do not describe all the adverse reactions to this medicine. Consult with your doctor or pharmacist if you notice any symptoms of concern other than those listed above.
Storage conditions and other information
•Keep out of the reach of children. Store away from direct sunlight, heat and moisture.
•Discard the remainder. Do not store them.
Nichi-iko Pharmaceutical Co.,LtdInternal
Revised: 2/2011
The information on this sheet is based on approvals granted by the Japanese regulatory authority. Approval details may vary by country. Medicines have adverse reactions (risks) as well as efficacies(benefits). It is important to minimize adverse reactions and maximize efficacy. To obtain a better therapeutic response, patients should understand their medication and cooperate with the treatment.