fudosteine CAS# 13189-98-5

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The official answer: Fudosteine, chemically known as (-)-(R)-2-amino-3-(3-hydroxypropylthio)propionic acid, is a cysteine derivative with an expectorant effect with the basic backbone of steine, which was developed by Mitsubishi Pharmaceutical and S.S. Pharmaceutical Co. It can inhibit the proliferation of epithelial cells, normalize the ratio of alginate/salivary acid in sputum, restore the state of cilia transporting airway secretion, and have anti-inflammatory effects; it has the advantages of strong efficacy, low side effects, wide indications, and large market potential, etc. It is suitable for the expectoration of chronic respiratory diseases such as bronchial asthma, chronic bronchitis, bronchiectasis, tuberculosis, pneumoconiosis, emphysema, atypical mycobacterial infection, diffuse fine bronchitis, etc. It is suitable for the expectoration of respiratory system diseases.