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Objective To develop an HPLC method for simultaneous determination of contents of asiaticoside, tetrahydropulmatine and saikosaponin d in Shenji Huwei Granules. Methods The analysis was performed on a R&C C18 column (250 mm × 4.6 mm, 5 μm) by using the mobile phase of acetonitrile (A) - phosphate buffer (which used potassium dihydrogen phosphate 8.34 g, potassium phosphate 0.87 g dissolved by 1000 mL water) with gradient elution (0–15 min, 20％A; 15–30 min, 20％→40％A; 30–42 min, 40％A; 42–45 min, 40％→48％A; 45–50 min, 48％A; 50–70 min, 48％→50％A). The flow rate was 1.0 mL/min; the detection wavelength was set at 210 nm; the column temperature was maintained at 30 ℃. Results Asiaticoside, tetrahydropulmatine and saikosaponin d were in the linear ranges among 0.173–2.770 μg (r=0.9999), 0.021–1.320 μg (r=0.9992), 0.151–9.660 μg (r=0.9993), respectively. The average recovery rates of asiaticoside, tetrahydropulmatine, saikosaponin d were 96.25％, 97.02％, and 97.84％, respectively, and RSD were 2.31％, 4.51％, 1.87％, respectively. Conclusion This method is simple, with good separation effect and strong specificity, and can be used for simultaneous determination of contents of asiaticoside, tetrahydropulmatine and saikosaponin d in Shenji Huwei Granules, which provides references for perfection of quality control of Shenji Huwei Granules.
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OBJECTIVE: To study the activities of matrine and anti-tumor drugs on SPCA/I human lung adenocarcinoma cell line. METHODS: Suppression effects of different concentrations of matrine and matrine combined with anti-tumor drugs on lung cancer cells were measured by methyl thiazolyl tetrazolium (MTT) colorimetric assay. RESULTS: Different concentrations of matrine could inhibit the growth of SPCA/I human lung adenocarcinoma cells and there was a positive correlation between the inhibition rate and the drug concentration. Different concentrations of matrine combined with anti-tumor drugs had higher growth inhibition rate than anti-tumor drugs alone. CONCLUSION: Matrine has direct growth suppression effect on SPCA/I human lung adenocarcinoma cells and matrine combined with anti-tumor drugs shows a significant synergistic effect on tumor cells.
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0.05),respectively.The average cost was 1 314.8 yuan in Group A versus 3 306.5 yuan in Group B(P
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OBJECTIVE: To provide reference for the revision of the concept of drugs and regulations on non-medical substance used as medicines that stated in Drug Administration Law.METHODS: The existing legal defects were analyzed according to the difficulty related to the application of law in a administrative lawsuit case.RESULTS & CONCLUSIONS: The conception of drug stated in Drug Administration Law is not accurate and standard enough,which is unfavorable to define non-medical substance used as medicines as sham medicine.Drug Administration Law should be improved by drawing lessons from legislative reference of foreign countries.
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OBJECTIVE:To analyze relevant regulations in Drug Administration Law and to study the safety of drug use. METHODS:The key points of the safety of drug use were analyzed through reasoning analysis. RESULTS&CONCLUSION:The safety of drug use was the core of medicine legislation while there were still some problems on law execution and blind spots in legislation. It is suggested to standardize the research and development of drug and purchase channel,improve system for safety of drug use and role of clinical pharmacists so as to guarantee the safety of drug use.
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OBJECTIVE:To discuss the laws applicable to the behavior of“drug handling beyond limits”.METHODS:The concerned contents of the related laws,codes,administrative rules and regulations issued at different time were analyzed comparatively.RESULTS:Under different laws and regulations,the same illegal behavior had different qualitations and treatments.CONCLUSION:Under the current laws and regulations,the behavior of“drug handling beyond limits”was qualitatively regarded as“drug handling without license”remains to be further consulted.