OBJECTIVE：To establish a method for determination of baicalin in QiLiKeGanKang oral liquid.METHODS：The RP-HPLC method was employed taking Nova-pak C18 column as fixed phase and methanol-water-phosphoric acid(45∶ 55∶ 0.2)as mobile phase.Detection wavelength was 280 nm.RESULTS：The detection ranges were 0.179μ g～1.434μ g.The average recovery of baicalin was 101.35％ (RSD=2.40％，n=5).CONCLUSION：This HPLC method is convenient，rapid，accurate and could be used for quality control in the production of QiLiKeGanKang oral liquid.

OBJECTIVE：To investigate the general patterns and characteristics of ADRs to antibiotics and to guide rational drug use.METHODS：Using literature metrological method，1 230 cases developing drug adverse reactions to antibiotics,reported in Chinese literatures in the past 10 years,were analysed.RESULTS：ADRs to antibiotics of the 1 230 cases accounted for 46.19％ of all sorts of drug adverse reactions in the same time period.Among the antibiotics,β-lactam antibiotics were number one in kind(18 kinds),those happened most frequently were ampicillin(192 cases).The most frequent adverse reactions were damages to the skin and its appendages and the most serious reaction was anaphylactic shock,of which 76.15％ (83/109) was caused by β-lactams.Since the T cells are offen activated by drugs resulting in release of cytokines,which are the key to understand drug adverse reactions51.79％ (29/56)of renal dysfuncition was caused by aminoglycosis,therefore,attention should be paid to them.CONCLUSION：Attention to the rational use of antibiotics is essential,so as to reduce abuse use and damage to patients by irrational drug administration.

OBJECTIVE：To study the therapeutic effect and safety of domestic tolterodine tartrate in treating patients with urinary bladder overactivity.METHODS：56 cases of bladder overactivity were divided into two groups randomly：tolterodine and control(oxybutynin)group.The course of treatment was 6 weeks.RESULTS：The effect of tolterodine in treatment group was comparable to that of oxybutynin in control group,however,the adverse reactions in oxybutynin group were more common than those in tolterodine group.CONCLUSION：Tolterodine is a suitable drug to treat bladder overactivity.

OBJECTIVE：To observe the therapeutic effect of limaixian in treating Helicobacterium pyloricus(HP)-related gastroduodenopathy of childhood and evaluate its role playing in triple short-term therapeutic scheme(TS scheme).METHODS：153 patients，who had definitely been diagnosed as HP-related gastroduodenopathy by gastroscopy or 13 C-UBT，were randomly divided into three groups(A，B，C)receiving ST scheme(omeprazole as the main drug).Group A：omeprazole 0.8mg/(kg*d)，metronidazole 20mg/(kg*d) and amoxycillin 40mg/(kg*d)； Group B omeprazole，metronidazole and klacid 15mg/(kg*d)； Group C：omeprazole，metronidazole and limaixian 15mg/(kg*d).Therapeutic course was 2 wks and gastroscopy or 13C-UBT were carried out 4 wks after discontinuation of drugs.RESULTS：(1)HP eradication rates of group A，B and C were 62.7％，92.1％ and 94.1％ respectively.The rates of group B,C were higher than that of group A.There were significant differences among three groups(X2=31.8,P<0.01).Group B showed no significant different with group C.(2) The remission rates of pain of group B and C were markedly higher than that of group A one and two wks after treatment (X2=19.3,P<0.05),there was no significant difference between group B and C.CONCLUSION:As an anti－ HP infection agent in TS scheme,limaixian is better than amoxycillin in therapeutic effect.Limaixian is comparable with imported klacid and inexpensive in price,it can be used as the first choice antibiotic in TS scheme.

OBJECTIVE：To compare the effect and adverse reactions of clarithromycin(Limaixian，CT)with those of erythromycin(ET)in treating respiratory tract mycoplasmal infections of children.METHODS：98 patients were randomly divided into CT group(56 cases)and ET group(42 cases)，CT in oral dosage of 20mg/(kg.d)and ET in iv dosage of 30～40mg/(kg· d)were given respectively.RESULTS：The curative rate，effective rate and clearance of mycoplasma of CT group were higher than those of ET group with significant differences(P<0.05).The adverse reactions induced by oral CT were less than those by iv infused ET(P<0.01).CONCLUSION： Oral CT shows satisfactory therapeutic effect， less adverse reactions and can effectively clear away mycoplasma in treatment of respiratory tract mycoplasmal infections of childhood.

OBJECTIVE：Analyzing the epidemic of drug risistance bacteria with extend spectrum β-lactamase(ESBLs)in children's wards to cut off the transmitting pathway and prevent the outbreak of nosocomial infections in time.METHODS：Samples，including sputum，umbilical secretion，pus，pharyngeal swab，were collected from in-hospital child patients in Departments of Newborn，Respiratory Tract Diseases，Cardiology，Nephrology，Hematology，Pediatric Surgery and ICU，then bacterial cultures and drug susceptibility test were carried out.54 strains of ESBLs E.coli and Klebsiella pneumoniae were isolated and their plasmid profiles were analysed by agarose electrophoresis.RESULTS：The percentages of ESBLs in the above-mentioned departments were 46.3，12.9，5.6，12.9，5.6，11.1，5.6 respectively.In analysis，three types of profiles were found and strains with four types of the same profile concentrated in the Newborn Department.The others were dispersed.CONCLUSION：Nosocomial infections possibly occured in the Newborn Department to some extent.

OBJECTIVE：To explore the possible mechanism of astragalus in improving cardiac function.METHODS：To observe the effects of astragalus,added to basic anti-heart-failure therapy,on cardiac function and TNF in 45 cases of thronic heart failure.RESULTS：In comparison with basic therapy group,the improvement of cardiac function was more obvious and the level of serum TNF-α was lower in astragalus group.CONCLUSION：Astragalus probably has the action of decreasing TNF resulting in improvement of cardiac function.

OBJECTIVE：To analyse the distributing proportion of amoxicillin/clavulanate K(CA) in β-lactmas and the popularzing rate of CA in hospitals.The proportions of different drug dosage forms of CA were compared.METHODS：The sums of money of the antiinfectives,β-lactams(penicillins) and CA consumed in 13 cities of China in 1999 were analysed.RESULTS：The distributing proportion of CA in β-lactams(penicillins)accounted for 18.3％ ,the popularzing rate of CA in 13 cities was 74.4％ ,of which,oral dosage form amounted to 41.7％ and powdered form for injection 58.3％ .CONCLUSION：The results can provide reference for rational use of drugs in hospital.

OBJECTIVE:To evaluate the pharmacoeconomic effectiveness of three therapeutic schemes for lower respiratory tract infections.METHODS:The cost-effectiveness analysis of three therapeutic schemes for lower respiratory tract infections was carried out.RESULTS:The cost-effectiveness ratio of penicillin-piperacillin schemes(L1)was minimum in respect to the effective rate.However,the cost-effectiveness ratios had no significant difference between cefotaxime scheme(L3)and L1 scheme in regard to cure rate(P>0.05),the cost-effectiveness ratio of ciprofloxacin-clinadmacin scheme(L2) was higher significantly than those of L1 and L3 schemes(P<0.05,both schemes).CONCLUSION： L1 is the best therapeutic scheme.Although L3 scheme had higher cost,it had higher cure rate and lower ADRs occurrence.L3 scheme is benefitial to improvement of patient's life quality.

AIM:To compare the therapeutic effect，adverse reactions and the costs between GM-CSF and G-CSF in treating leucopenia in chemotherapy of cancer.METHODS:Using pharmacoeconomic cost-effectiveness analysis，GM-CSF was compared with G-CSF in treatment of leucopenia in chemotherapy of cancer.RESULTS:The effective rate of GM-CSF was 80％ with an average cost of 1 008 yuan in a therapeutic course，the cost-effective ratio being12.6，and that of G-CSF was 85.7％ with an average cost of 2 304 yuan，the cost-effective ratio being 26.88.CONCLUSION:GM-CSF can effectively treat leucopenia in chemotherapy of cancer，and its cost-effective ratio ia superior to that of G-CSF.GM-CSF is worthy to be used clinically.