1.Studies on the Quality Control Standard of Adansan Eye-drops
China Pharmacy 1991;0(05):-
OBJECTIVE:To establish the quality standard of Adansan eye-drops(ADS).METHODS:Saliva miltiorrhiza and ATP were qualitatively detected by TLC and HPLC respectively.Atropine sulfate was quantitatively detected by VIS-spectrophotometry.RESULTS:The average recovery was 99.9% with a RSD of 2.46%(n=5).CONCLUSION:This method is simple,accurate and specific.It can be used for the quality control of ADS.
2.Determination of Content of Ceftizoxime by RP-HPLC
Aichun YI ; Shunzhi ZHANG ; Difang CHEN
China Pharmacy 2001;0(11):-
OBJECTIVE:To determine the content of ceftizoxime for injection METHODS:A RP-HPLC method was established,the polarls C18 was used as analysis column The mobile phase consisted of 0 23% sodium hydrogen phosphate and 0 14% trisodium buffer-acetonitrile(85∶15),the flow rate was 1 0ml/min,the detection wavelength was 254nm RESULTS:The linear range of ceftizoxime was 4 1 462~37 3 156?g/ml,r=0 9 999 The relative standard deviation was 0 6% CONCL_USION:The method is rapid,accurate and suitable for determination of content of ceftizoxime for injection
3.Pharmacokinetics Comparison of Baicalin between Traditional Slice Decoction and Dispensing Granule De-coction of Huanglianjiedu Decoction
Li YUAN ; Shao LIU ; Tieliu YUAN ; Shunzhi ZHANG ; Peng LEI
China Pharmacist 2016;19(4):689-692
Objective:To compare the pharmacokinetics consistence of baicalin between traditional slice decoction and dispensing granule decoction of Huanglianjiedu decoction. Methods:After the gastric administration of the two decoctions at low, middle and high dose in rats, an HPLC method was used to detect the content of baicalin in the plasma, and then DASS 2. 1. 1 software was used to cal-culate the pharmacokinetic parameters. Results:After the administration of the two decoctions at low, middle and high dose, the phar-macokinetic parameters were as follows:Cmax of 0. 25 and 0. 27μg·ml-1 ,0. 30 and 0. 31 μg·ml-1 ,0. 40 and 0. 45 μg·ml-1;AUC of 2. 48 and 2. 59μg·ml-1 ·h,3. 59 and 3. 71μg·ml-1 ·h,5. 71 and 6. 16μg·ml-1 ·h;Tmax of 3. 0 and 3. 0 h,3. 0 and 3. 0 h, 4.0 and 4.0 h;Vd of (2 822.4 ±118.2) and (2 998.9 ±255.6) L·kg-1,(3 102.6 ±176.3) and (3 405.3 ±213.8) L·kg-1, (4 231.2 ±155.4) and (4 486.0 ±187.0) L·kg-1;CL of (2 923.3 ±215.6) and (2 767.5 ±184.6)L·h-1·kg-1,(4 921.7 ± 225.4) and (4 040.8 ±246.7)L·h-1·kg-1,(5 255.9 ±189.7) and (4 868.7 ±260.4)L·h-1·kg-1;and t1/2 of (3.88 ± 0.41) and (3.71 ±0.37)h,(4.19 ±0.36) and (3.73 ±0.51)h, (5.54 ±0.38) and (5.80 ±0.54)h. Conclusion: The pharma-cokinetic parameters of baicalin have no significant difference between traditional slice decoction and dispensing granule decoction of Huanglianjiedu decoction.
4.Analysis of 439 Cases of Infection Diseases from Neurology Ward Consulted by Clinical Pharmacists
Gefei HE ; Tieliu YUAN ; Shunzhi ZHANG ; Ximin QIU ; Ji SUN ; Xiaohui LIU
China Pharmacist 2015;(4):624-627
Objective:To analyze the characteristics of infectious diseases from neurology ward and provide reference for the treat-ment. Methods:The consultation record of the neurological patients who suffered infection diseases were retrospectively summarized from January 2011 to December 2013. All the consultation were performed by clinical pharmacists. SPSS 19. 0 software was used to an-alyze the adoption and prognosis of the outcomes. Results:In 439 consultation cases,256 patients(58. 31%)were older than 65 years. Most of the cases were respiratory infection(294 cases,65. 33%),urinary tract infection(40 cases,8. 89%)and intracranial infection(37 cases,8. 22%). There were 510 strains of bacteria isolated by culturing,in which 362 strains were gram-negative bacte-ria(70. 98%),127 strains were gram-positive bacteria(24. 90%)and 21 strains were fungi(4. 12%). The top five of pathogenic bac-teria were Pseudomonas aeruginosa(125 stains,24. 51%),Acinetobacter baumannii(93 stains,18. 24%),Staphylococcus aureus(88 stains,17. 25%),Staphylococcus aureus(68 stains,13. 33%)and Escherichia coli. (32 stains,6. 27%). The detection rates of ESBLs of K. pneumonia and E. coli were 61. 36% and 75. 00%,respectively. Among 125 strains of P. aeruginosa,the sensitive rate to meropenem and inipenem was 65. 8% and 70. 6%,respectively. A. baumannii was highly multidrug resistant,and 21 strains (22. 58%)with pan-drug resistance were isolated. Gram-positive bacteria were highly sensitive to vancomycin and teicoplanin. Totally 35 strains(52. 24%)of MRSA were isolated. The complete adoption rate of consultation opinion was 84. 74%(372 cases),the partial adoption rate was 7. 28%(32 cases),and 35 cases(7. 97%)were declined. In all the adopted cases(319 cases,78. 96%)showed effectiveness. In the linear correlation analysis,the consultation adoption and therapy outcomes had significant correlation(P<0. 01). Conclusion:Clinical pharmacists can improve the efficiency in anti-infection therapy and play important roles in the treatment of infec-tious diseases in neurology ward,especially in the treatment of drug-resistant bacterial infections.
5.Determination of quercetin and kaempferol in Dysosma plants by RP-HPLC.
Jun LUO ; Liyan ZHANG ; Mingxiang WAN ; Shunzhi HE ; Yuqin YANG
China Journal of Chinese Materia Medica 2010;35(22):3021-3023
OBJECTIVETo determine quercetin and kaempferol in the plant of genus Dysosma that come from different species, different plant parts or different growing areas, which provide the basis of rational utilization of Dysosma plants.
METHODThe analysis was performed on a Diamonsil C18 column (4.6 mm x 150 mm, 5 microm) eluted with the mobile phase of methanol-water containing 0.1% phosphoric acid (60:40). The flow rate was 1 mL x min(-1), the detection wavelength was 360 nm; and the column temperature was set at 25 degrees C.
RESULTThe linear ranges of quercetin and kaempferol are 0.22-1.1 microg and 0.42-2.1 microg. The average recoveries of quercetin and kaempferol are 97.1% (RSD 1.4%) and 99.6% (RSD 2.4%); respectively.
CONCLUSIONThe contents of flavones in different species of Dysosma are significantly different.
Berberidaceae ; chemistry ; Chromatography, High Pressure Liquid ; methods ; Chromatography, Reverse-Phase ; methods ; Drugs, Chinese Herbal ; analysis ; Kaempferols ; analysis ; Quercetin ; analysis
6.Pharmacokinetics and Bioequivalence Study of Generic Tofacitinib Citrate Tablets
Ping LU ; Jie WANG ; Xiaoli YIN ; Shunzhi ZHANG ; Wei WU
Herald of Medicine 2024;43(2):203-207
Objective To assess the pharmacokinetic characteristics of two types of tofacitinib citrate tablets in healthy individuals and evaluate their bioequivalence and safety.Methods A randomized,two-period,self-crossing design was used with 36 subjects in two groups in both fasting and postprandial conditions.Each group received 5 mg tofacatile citrate tablets of either generic tofacitinib citrate tablets(T)or the reference product(R)per period,and the plasma concentration of tofacatile tablets was detected by LC-MS/MS.Phoenix WinNonlin software was used to calculate pharmacokinetic parameters and evaluate its bioequivalence.Results After single oral administration of test and reference preparations,the main pharmacokinetic parameters were as follows:Cmax values in fasting group were(57.54±13.95)and(59.17±12.31)ng·mL-1,respectively;AUC0,values were(143.83±34.58)and(142.13±33.00)ng·h·mL-1,respectively;AUC0-∞ values were(147.39±35.27)and(146.15±34.64)ng·h·mL-1,respectively;tmax was 0.5 h for both;Cmax values in the postprandial group were(57.16±17.56)and(55.19±21.98)ng·mL-1;AUC0-t values were(165.47±41.63)and(162.04±41.84)ng·h·mL-1;AUC0-∞ values were(171.88±44.15)and(168.05±44.21)ng·h·mL-1;The t max was 1.0 h for both.The 90%confidence intervals for the geometric mean ratios of Cmax,AUC0-t and AUC0-∞ in fasting group and postprandial group were 96.35%(90.11%-103.03%)and 105.91%(95.20%-117.83%),101.02%(98.76%-103.34%)and 102.23%(99.67%-104.86%),100.77%(98.53%-103.06%)and 102.40%(99.81%-105.06%),all within the range of 80.00%-125.00%.Conclusion Both types of generic tofacitinib citrate tablets are bioequivalent and safe in Chinese healthy individuals.