OBJECTIVE:To optimize the formulation of Dimemorfan phosphate tablets. METHODS:Using 60 min dissolution rate of dimemorfan phosphate as index,L9(34) orthogonal test was used to optimize the amount of starch,microcrystalline cellu-lose,croscarmellose sodium and concentration of HPMC E5 solution. The friability,hardness,60 min dissolution rate and main component were detected. The similarity of dissolution curves of Dimemorfan phosphate tablets was compared with that of imported tablets in 0.1 mol/L hydrochloric acid,pH 6.8 phosphate buffer,water and pH 4.0 acetate buffer. RESULTS:The optimized formu-lation of Dimemorfan phosphate tablet(1 000 tablets)was composed of dimemorfan phosphate 10 g,starch 60 g,microcrystalline cellulose 40 g,10% HPMC E5 solution and croscarmellose sodium 25 g. The friability,hardness,60 min dissolution rate and main component of 3 batches of Dimemorfan phosphate tablets prepared by optimized prescription were 0.42%-0.58%,9.8-10.5 kg,94.89%-96.21% and 99.21%-99.52%,respectively. In 4 dissolution mediums,similar factors f2 of dissolution curves between prepared tablets and imported tablets were above 50. CONCLUSIONS:Dimemorfan phosphate tablets were prepared successfully. The optimized formulation is rational. The dissolution behavior of prepared tablets is similar to that of imported tablets in vitro.

Objective:To determine the content of chloroform, ethyl acetate and DMF in dimemorfan phosphate by gas chromatog-raphy (GC). Methods:The capillary gas chromatography was used with a PEG-20M column, programmed temperature, water as the solvent and FID as the detector. Results:The three organic solvents were separated and showed good linear relationship (r>0. 999 0). The detection limit of chloroform, ethyl acetate and DMF was 0. 63,0. 60 and 8. 92μg·ml-1 , respectively. The residues of the organ-ic solvents in three batches of the samples all met with the requirements of ICH. Conclusion: The method is sensitive, accurate and reliable, and can be used in the quality control of dimemorfan phosphate.

Objective:To establish a method for the determination of dichloromethane, methanol and ethanol in fenticonazole ni-trate. Methods:The samples were detected by headspace GC. The column was OV-1301(30 m × 0. 53 mm,3. 0 μm), the detector was FID with nitrogen as the carrier gas, the detector temperature was 250 ℃ and the injector temperature was 200 ℃. Results:The linear range of dichloromethane, methanol and ethanol was 2. 436-21. 924(r=0. 998 8), 12. 268-110. 412(r=0. 999 5) and 20. 052-180. 468 μg·ml-1(r=0. 996 9) with the average recovery of 99. 30% (RSD=2. 36%), 100. 21%(RSD=1. 07%) and 100. 15%(RSD=1. 21%)(n=9), respectively. Conclusion:The detection method is sensitive, accurate and reliable, and can be used in the quality control of fenticonazole nitrate.

Objective To establish a gas chromatograph method for determing Chloroform, ethyl acetate and N, N-dimethyl formamide in butoconazole nitrate. Methods The samples was detected by Headspace Gas Chromatography. Temperature programming method was adpoted and FID was used as detector. The injector temperature was 200 ℃, and the detector temperature was reach 250 ℃. Nitrogen was used as carrier gas in the experiment. Results In the mentioned chromatographic conditions, Chloroform, ethyl acetate and N, N-dimethyl formamide had good linear relationships in the ranges of 0. 066-0. 588,0. 062-0. 556 and 0. 896-8. 061 μg·mL-1 respectively. The average recoveries were 99. 18%,102. 84% and 98. 71%. RSD were 3. 87%,4. 33% and 3. 71%. Conclusion The detection method is sensitive, accurate, reliable, and can be used as a quality control for butoconazole nitrate.

BACKGROUND:Poisoned patients often suffer damage to multiple systems,and those experiencing central nervous system disorders present more severe conditions,prolonged hospital stays,and increased mortality rates.We aimed to assess the efficacy of rehabilitation interventions for patients with toxic encephalopathy. METHODS:This retrospective,observational,comparative cohort study was performed at the teaching hospital affiliated of Nanjing Medical University,from October 2020 to December 2022.Patients who met the diagnostic criteria for toxic encephalopathy and exclusion criteria were included,and patients were divided into three subgroups according to Glasgow Coma Scale(GCS).Demographic and clinical characteristics were collected.The effect of the rehabilitation intervention on patients were assessed in the improvement of consciousness status(Glasgow Coma Scale[GCS]score),muscle strength and movement and swallowing function(Fugl-Meyer Assessment[FMA]scale,Water Swallow Test[WST],and Standardized Swallowing Assessment[SSA]).Subgroup analysis was based on different toxic species. RESULTS:Out of the 464 patients with toxic encephalopathy,184 cases received rehabilitation treatments.For the severe toxic encephalopathy patients,patients without rehabilitation intervention have a 2.21 times higher risk of death compared to patients with rehabilitation intervention(Hazard ratio[HR]=2.21).Subgroup analysis revealed that rehabilitation intervention significantly increased the survival rate of patients with pesticide poisoning(P=0.02),while no significant improvement was observed in patients with drug/biological agent poisoning(P=0.44).After rehabilitation intervention,significant improvement in GCS and FMA were observed in severe patients with toxic encephalopathy(P<0.01). CONCLUSION:Active rehabilitation intervention for patients exposed to poisons that can potentially cause toxic encephalopathy may improve the prognosis and reduce the mortality rate in clinical practice.

BACKGROUND:Poisoned patients often suffer damage to multiple systems,and those experiencing central nervous system disorders present more severe conditions,prolonged hospital stays,and increased mortality rates.We aimed to assess the efficacy of rehabilitation interventions for patients with toxic encephalopathy. METHODS:This retrospective,observational,comparative cohort study was performed at the teaching hospital affiliated of Nanjing Medical University,from October 2020 to December 2022.Patients who met the diagnostic criteria for toxic encephalopathy and exclusion criteria were included,and patients were divided into three subgroups according to Glasgow Coma Scale(GCS).Demographic and clinical characteristics were collected.The effect of the rehabilitation intervention on patients were assessed in the improvement of consciousness status(Glasgow Coma Scale[GCS]score),muscle strength and movement and swallowing function(Fugl-Meyer Assessment[FMA]scale,Water Swallow Test[WST],and Standardized Swallowing Assessment[SSA]).Subgroup analysis was based on different toxic species. RESULTS:Out of the 464 patients with toxic encephalopathy,184 cases received rehabilitation treatments.For the severe toxic encephalopathy patients,patients without rehabilitation intervention have a 2.21 times higher risk of death compared to patients with rehabilitation intervention(Hazard ratio[HR]=2.21).Subgroup analysis revealed that rehabilitation intervention significantly increased the survival rate of patients with pesticide poisoning(P=0.02),while no significant improvement was observed in patients with drug/biological agent poisoning(P=0.44).After rehabilitation intervention,significant improvement in GCS and FMA were observed in severe patients with toxic encephalopathy(P<0.01). CONCLUSION:Active rehabilitation intervention for patients exposed to poisons that can potentially cause toxic encephalopathy may improve the prognosis and reduce the mortality rate in clinical practice.

BACKGROUND:Poisoned patients often suffer damage to multiple systems,and those experiencing central nervous system disorders present more severe conditions,prolonged hospital stays,and increased mortality rates.We aimed to assess the efficacy of rehabilitation interventions for patients with toxic encephalopathy. METHODS:This retrospective,observational,comparative cohort study was performed at the teaching hospital affiliated of Nanjing Medical University,from October 2020 to December 2022.Patients who met the diagnostic criteria for toxic encephalopathy and exclusion criteria were included,and patients were divided into three subgroups according to Glasgow Coma Scale(GCS).Demographic and clinical characteristics were collected.The effect of the rehabilitation intervention on patients were assessed in the improvement of consciousness status(Glasgow Coma Scale[GCS]score),muscle strength and movement and swallowing function(Fugl-Meyer Assessment[FMA]scale,Water Swallow Test[WST],and Standardized Swallowing Assessment[SSA]).Subgroup analysis was based on different toxic species. RESULTS:Out of the 464 patients with toxic encephalopathy,184 cases received rehabilitation treatments.For the severe toxic encephalopathy patients,patients without rehabilitation intervention have a 2.21 times higher risk of death compared to patients with rehabilitation intervention(Hazard ratio[HR]=2.21).Subgroup analysis revealed that rehabilitation intervention significantly increased the survival rate of patients with pesticide poisoning(P=0.02),while no significant improvement was observed in patients with drug/biological agent poisoning(P=0.44).After rehabilitation intervention,significant improvement in GCS and FMA were observed in severe patients with toxic encephalopathy(P<0.01). CONCLUSION:Active rehabilitation intervention for patients exposed to poisons that can potentially cause toxic encephalopathy may improve the prognosis and reduce the mortality rate in clinical practice.

BACKGROUND:Poisoned patients often suffer damage to multiple systems,and those experiencing central nervous system disorders present more severe conditions,prolonged hospital stays,and increased mortality rates.We aimed to assess the efficacy of rehabilitation interventions for patients with toxic encephalopathy. METHODS:This retrospective,observational,comparative cohort study was performed at the teaching hospital affiliated of Nanjing Medical University,from October 2020 to December 2022.Patients who met the diagnostic criteria for toxic encephalopathy and exclusion criteria were included,and patients were divided into three subgroups according to Glasgow Coma Scale(GCS).Demographic and clinical characteristics were collected.The effect of the rehabilitation intervention on patients were assessed in the improvement of consciousness status(Glasgow Coma Scale[GCS]score),muscle strength and movement and swallowing function(Fugl-Meyer Assessment[FMA]scale,Water Swallow Test[WST],and Standardized Swallowing Assessment[SSA]).Subgroup analysis was based on different toxic species. RESULTS:Out of the 464 patients with toxic encephalopathy,184 cases received rehabilitation treatments.For the severe toxic encephalopathy patients,patients without rehabilitation intervention have a 2.21 times higher risk of death compared to patients with rehabilitation intervention(Hazard ratio[HR]=2.21).Subgroup analysis revealed that rehabilitation intervention significantly increased the survival rate of patients with pesticide poisoning(P=0.02),while no significant improvement was observed in patients with drug/biological agent poisoning(P=0.44).After rehabilitation intervention,significant improvement in GCS and FMA were observed in severe patients with toxic encephalopathy(P<0.01). CONCLUSION:Active rehabilitation intervention for patients exposed to poisons that can potentially cause toxic encephalopathy may improve the prognosis and reduce the mortality rate in clinical practice.

BACKGROUND:Poisoned patients often suffer damage to multiple systems,and those experiencing central nervous system disorders present more severe conditions,prolonged hospital stays,and increased mortality rates.We aimed to assess the efficacy of rehabilitation interventions for patients with toxic encephalopathy. METHODS:This retrospective,observational,comparative cohort study was performed at the teaching hospital affiliated of Nanjing Medical University,from October 2020 to December 2022.Patients who met the diagnostic criteria for toxic encephalopathy and exclusion criteria were included,and patients were divided into three subgroups according to Glasgow Coma Scale(GCS).Demographic and clinical characteristics were collected.The effect of the rehabilitation intervention on patients were assessed in the improvement of consciousness status(Glasgow Coma Scale[GCS]score),muscle strength and movement and swallowing function(Fugl-Meyer Assessment[FMA]scale,Water Swallow Test[WST],and Standardized Swallowing Assessment[SSA]).Subgroup analysis was based on different toxic species. RESULTS:Out of the 464 patients with toxic encephalopathy,184 cases received rehabilitation treatments.For the severe toxic encephalopathy patients,patients without rehabilitation intervention have a 2.21 times higher risk of death compared to patients with rehabilitation intervention(Hazard ratio[HR]=2.21).Subgroup analysis revealed that rehabilitation intervention significantly increased the survival rate of patients with pesticide poisoning(P=0.02),while no significant improvement was observed in patients with drug/biological agent poisoning(P=0.44).After rehabilitation intervention,significant improvement in GCS and FMA were observed in severe patients with toxic encephalopathy(P<0.01). CONCLUSION:Active rehabilitation intervention for patients exposed to poisons that can potentially cause toxic encephalopathy may improve the prognosis and reduce the mortality rate in clinical practice.

BACKGROUND:Poisoned patients often suffer damage to multiple systems,and those experiencing central nervous system disorders present more severe conditions,prolonged hospital stays,and increased mortality rates.We aimed to assess the efficacy of rehabilitation interventions for patients with toxic encephalopathy. METHODS:This retrospective,observational,comparative cohort study was performed at the teaching hospital affiliated of Nanjing Medical University,from October 2020 to December 2022.Patients who met the diagnostic criteria for toxic encephalopathy and exclusion criteria were included,and patients were divided into three subgroups according to Glasgow Coma Scale(GCS).Demographic and clinical characteristics were collected.The effect of the rehabilitation intervention on patients were assessed in the improvement of consciousness status(Glasgow Coma Scale[GCS]score),muscle strength and movement and swallowing function(Fugl-Meyer Assessment[FMA]scale,Water Swallow Test[WST],and Standardized Swallowing Assessment[SSA]).Subgroup analysis was based on different toxic species. RESULTS:Out of the 464 patients with toxic encephalopathy,184 cases received rehabilitation treatments.For the severe toxic encephalopathy patients,patients without rehabilitation intervention have a 2.21 times higher risk of death compared to patients with rehabilitation intervention(Hazard ratio[HR]=2.21).Subgroup analysis revealed that rehabilitation intervention significantly increased the survival rate of patients with pesticide poisoning(P=0.02),while no significant improvement was observed in patients with drug/biological agent poisoning(P=0.44).After rehabilitation intervention,significant improvement in GCS and FMA were observed in severe patients with toxic encephalopathy(P<0.01). CONCLUSION:Active rehabilitation intervention for patients exposed to poisons that can potentially cause toxic encephalopathy may improve the prognosis and reduce the mortality rate in clinical practice.