ABSTRACT
Objective: Through the accelerated experiment and long-term experiment, the main contents of ephedrine and white peony root in Chinese materia medica (CMM) lotion were taken as the main indexes, and the stability of the medicine lotion of infants with bronchitis was investigated. Methods: According to the quality standard of CMM lotion for infant bronchitis, the existence of Ephedrae Herba, Poria, Paeoniae Radix Alba, Aurantii Fructus and Epimedii Folium in the sample was identified by thin layer chromatography. The contents of Ephedrae Herba (ephedra hydrochloride and pseudoephedrine hydrochloride) and Paeoniae Radix Alba (paeoniflorin) were determined by HPLC, and the stability of CMM lotion samples was evaluated by plate method. Results: The contents of Ephedrae Herba, Poria, Paeoniae Radix Alba, Aurantii Fructus, and Epimedii Folium were measured. The contents of Ephedrae Herba and Paeoniae Radix Alba were higher than 0.18 mg and 0.72 mg; The total contents of aerobic bacteria and mycorrhizal yeasts were not more than 100 cfu/mL, and Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus were not detected, in line with quality standards. Conclusion: The three batches of CMM lotion prepared by the First People’s Hospital of Guangxi have good stability and long-term stability, for the goods packaging, transportation, and storage conditions to provide the necessary information.