Biomedical subjects

T Haruta

Publications and source records attributed to T Haruta.

At least 109 records · Page 6Linked to original sources

PubMed1988

[Clinical studies of rokitamycin dry syrup in the field of pediatrics].

We studied the absorption and excretion as well as the clinical effect of rokitamycin (RKM, TMS-19-Q) dry syrup. The results we found are summarized as follows: 1. When 3 pediatric patients were medicated orally with a single dose of 10 mg/kg of the drug, its peak concentrations of 0.75 and 0.51 microgram/ml appeared in the blood in 30 minutes after administration in 2 patients, and of 0.21 microgram/ml in 1 hour in the other patient. At 4 hours after administration, its concentration in the blood was 0.07-0.08 microgram/ml in all of the patient, and at 6 hours, it was undetectable. T1/2 values were 1.05-2.08 hours. First 6-hour urinary recovery rates of the drug in the first 2 patients were 1.52 and 1.11%, respectively. 2. Twenty-four patients with 25 diseases were medicated with 7.14-12.5 mg/kg of the drug 3-4 times daily for 4-10 days. The patients consisted of 12 with tonsillitis, 7 with bronchitis, 3 with colitis, one each with Haemophilus influenzae pneumonia, mycoplasmal pneumonia, and pertussis. Clinical responses to the treatment were excellent in 7, good in 13, and poor in 5, with an efficacy rate of 80.0%. Bacteriologically, of 17 isolates whose changes were followed, 8 were eradicated, 1 decreased, and 8 remained unchanged, with an eradication rate of 47.1%. 3. No adverse reactions to the drug were observed in any of these patients, while abnormal laboratory test values observed were slight eosinophilia and also slight elevations of S-GOT and S-GPT in one of the patients.(ABSTRACT TRUNCATED AT 250 WORDS)

Administration, Oral↗

PubMed1988

[Clinical evaluation of ceftizoxime in neonates and premature infants].

Ceftizoxime (CZX) was evaluated for absorption and excretion as well as for therapeutic effectiveness in neonates and premature infants. The following results were obtained. 1. Serum CZX concentrations were determined in 8 neonates or premature infants who were not more than 6 days old. Serum concentrations of the drug were examined in 6 neonates and/or premature infants after intravenous administration of about 20 mg/kg body weight. Average concentration at 1/2, 2, 4 and 6 hours after administration were 52.3, 36.4, 26.7 and 16.7 micrograms/ml, respectively. Serum concentrations in the other 2 infants who were given 29.7 and 25.1 mg/kg, were as high as 71 and 94 micrograms/ml at 1/2 hour and 22.1 and 39 micrograms/ml at 6 hours, respectively. Serum half-lives in 5 of the 6 mature neonates ranged from 2.36 to 3.34 hours, with averaged 2.75 hours, but was exceptionally long, 7.92 hours, in the other one. Half-lives in the 2 premature infants were 4.14 and 4.90 hours. 2. The therapeutic effectiveness on bacterial infection was evaluated for 10 newborn infants. Intravenous doses of 16.9 to 24.6 mg/kg were given in b.i.d. or t.i.d. regimen to 4 cases with pneumonia and 2 with septicemia, urinary tract infection and fetal infection each. To 1 infant with septicemia complicated with cephalohematoma, higher doses ranged from 21.8 to 49.8 mg/kg were given t.i.d. or q.i.d. Therapeutic efficacies were assessed as "Excellent" in 3, "Good" in 6, and "Poor" in 1, with an efficacy rate of 90.0%. Eradication of bacteria was complete in 2 infants each with Escherichia coli-induced septicemia or urinary tract infection. 3. For prophylactic use, the drug was given to 8 newborn infants in intravenous doses of 17.5 to 29.1 mg/kg b.i.d. or t.i.d. and no infection occurred in 7 cases. 4. No adverse reactions were obtained. Slight and transient increases in platelet count, GOT and GPT in 1 case and eosinophilia in another were observed. 5. These results suggested that CZX in an intravenous dose of 20 mg/kg b.i.d. or t.i.d. regimen in newborn infants up to 7 days of age would be effective and safe for the treatment of neonatal bacterial infections.

Absorption↗

PubMed1988

[Evaluation of imipenem/cilastatin sodium in neonatal infections].

Ten patients with infections (8 neonates and 2 infants) were treated with 10.2 mg/10.2 mg/kg-37.7 mg/37.7 mg/kg of imipenem/cilastatin sodium (IPM/CS) b.i.d. or t.i.d. by a 1-hour intravenous drip infusion. The plasma concentrations of IPM/CS were determined in 5 of the 10 patients and in the cerebrospinal fluid of 1 patient of the 5. 1. The patients studied included 5 with pneumonia and 1 each with urinary tract infection, omphalitis, suspected meningitis, periproctal abscess and suspected septicemia. Clinical efficacy was evaluated in 9 patients: the patient with suspected meningitis was excluded from the clinical evaluation because the infection was doubtfully due to bacteria. Responses were excellent in 4 and good in 5 patients. No patient with a poor response was observed. All of the 6 etiological isolates obtained from 5 patients (2 strains of Staphylococcus aureus and 1 each of Escherichia coli, Enterococcus faecalis, Streptococcus agalactiae and Bacteroides fragilis) were eradicated. 2. As for side effects, rash was observed in 1 patient and petechiae accompanied by decreases in platelets and reticulocytes and increases in GOT and GPT were observed in another. Other abnormal laboratory test values in addition to the above abnormalities consisted of an increase in GPT in 1 patient and increases in GOT and GPT in another. These side effects and abnormalities in laboratory test values were mild and normalized after discontinuation or completion of IPM/CS administration.(ABSTRACT TRUNCATED AT 250 WORDS)

Age Factors↗

PubMed1988

[Clinical experience with sultamicillin fine granules in pediatric field].

Sultamicillin fine granules were used orally in 18 pediatric patients with infections in doses ranging 7.3-10.0 mg/kg t.i.d. or q.i.d. The following is a summary of the results: 1. Clinical efficacies in 16 cases with tonsillitis were excellent in 13 cases, good in 2 cases and fair in 1 case. Efficacy in 1 case of bronchitis and 1 case of pneumonia were good. The overall efficacy rate in the 18 cases was 94.4%. 2. Four out of 5 strains of Staphylococcus aureus were eradicated but 1 strain persisted. Three out of 7 strains of Haemophilus influenzae were rated as eradicated, 1 strain as decreased and 3 strains as persisted. Two strains of Streptococcus pyogenes and 3 strains of Haemophilus parainfluenzae were eradicated. The bacteriological efficacy rate for the 17 strains was 70.6%. Four strains out of the 17 were found to produce beta-lactamase and 3 strains were suspected, to produce the enzyme, but of these 7 strains, 5 strains were eradicated. 3. Diarrhea and loose stool were observed as side effects in each of 2 cases. It appeared that diarrhea was related to this drug. A slight elevation of GOT was observed in 1 case in laboratory tests. 4. This drug appears to be easy for children to take in terms of taste and smell.

Age Factors↗

PubMed1988

[Clinical evaluation of ceftriaxone in the treatment of neonatal infections].

Ceftriaxone (CTRX) was administered to the newborn and its clinical effectiveness as well as its blood and cerebrospinal fluid levels were studied. 1. Average blood levels of CTRX 1 hour after single intravenous administration were 39 micrograms/ml in 2 cases receiving about 10 mg/kg, 70 micrograms/ml in 2 other cases receiving 20 mg/kg and 208 micrograms/ml in one receiving 52.6 mg/kg. As is apparent from these cases data, blood levels of CTRX were dose dependent. Blood levels of the drug were between 3.7 to 12.4 micrograms/ml 24 hours later. Half-lives of the drug in blood in the 5 newborns ranged from 7.13 to 10.6 hours. In a 53-day-old patient receiving 43.4 mg/kg of CTRX via intravenous injection, the one-hour blood level of the drug was 140 micrograms/ml and the half-life was 3.68 hours. The blood level of the drug 36 hours after single intravenous administration with 17.3 to 20.0 micrograms/ml to 5 other cases 0 to 5 days of age ranged from 4.6 to 13.7 micrograms/ml. 2. The cerebrospinal fluid level of CTRX 4 hours after intravenous administration with 49.6 mg/kg to cases of Escherichia coli meningitis was 9.7 micrograms/ml on the first day following the start of the treatment. It increased to 23.6, 25.2 and 31.0 micrograms/ml on the third, fourth and fifth days, respectively, and then gradually decreased. Cerebrospinal level was still 5.8 micrograms/ml on the 22nd day during the recovery period. These levels were far more than 1,000 times as much as the MIC for the pathogen at the highest level, and more than 100 times even at the lowest level. 3. CTRX was administered via intravenous injection once or twice a day (11.0-39.5 mg/kg in total) to 13 newborns and 3 infants. The efficacy of CTRX was good to excellent in 10 cases for treatment of 11 diseases (sepsis 1, pneumonia 4, urinary tract infection 4 and fetal infection 2) and all the pathogens (Streptococcus agalactiae 1, E. coli 3, Klebsiella pneumoniae 2, Citrobacter diversus 1) disappeared. In 6 cases where CTRX was used prophylactically, infection did not occur at all. The efficacy was excellent in another newborn with E. coli meningitis intravenously receiving 49.6 mg/kg of CTRX twice daily for 25 days. 4. No adverse reactions were observed. Mild eosinophilia was observed in 4 cases. Follow-up examinations of 3 of the 4 cases showed that these abnormal levels were returned to normal.(ABSTRACT TRUNCATED AT 400 WORDS)

Bacterial Infections↗

PubMed1987

[Bacteriological and clinical studies of flomoxef in the pediatric field].

Flomoxef (FMOX, 6315-S), a new parenteral oxacephem antibiotic, was studied bacteriologically and clinically. 1. The MIC and MBC values of FMOX and cefuzonam (CZON) were determined against strains of Staphylococcus aureus recently isolated from clinical materials. In MICs against methicillin- and cefazolin (CEZ)-sensitive strains, FMOX and CZON were almost equivalent. In MBC, FMOX showed lower values than CZON. Against resistant strains, both MIC and MBC values indicated that FMOX was superior to CZON, and particularly, values showed large differences in MBC. 2. FMOX was administered intravenously at doses of 20.0-35.1 mg/kg 3 or 4 times daily to 17 children aged 2 months to 8 years. The therapeutic effect was determined in 16 cases (pneumonia 9 cases, pyothorax 1, urinary tract infection 2, staphylococcal scalded skin syndrome 1, cellulitis 2 and arthritis 1). One remaining case was unevaluable and later found to be mycoplasmal pneumonia. The effect was determined as excellent in 10 cases and good in 6 cases. All the causative organisms detected in these evaluable cases were eliminated. 3. There were no symptoms or findings that suggested the occurrence of side effects of the drug in any of the 17 cases. With regard to laboratory values, a slight elevation of GPT was found in 1 case only. 4. In a case with pyothorax, the concentration of the drug in the pleural fluid determined on the day following the initiation of treatment was 18.2 micrograms/ml at 30 minutes after intravenous injection of the drug at 33 mg/kg. The concentration was 46.7 times as high as the MIC (0.39 micrograms/ml) against the causative organism S. aureus. 5. Two doses of FMOX were intravenously administered at the dose of 50 mg/kg to a female infant ventriculoperitoneal shunt infection which had been treated with other drugs. In this case showing relatively low cell counts of 171-240/mm3 in the ventricular fluid, concentrations of the drug measured by HPLC were as low as 0.53 and 0.98 micrograms/ml 1 hour after intravenous injection of the drug. 6. The above results suggested that FMOX is a new antibiotic drug easy to use and effective for the treatment of general infections in children.

Age Factors↗

PubMed1987

[Clinical evaluation of cefuzonam in pediatrics].

Cefuzonam (L-105, CZON), a new injectable cephalosporin, was used in 12 pediatric patients with infections. The following is a summary of the results: The 12 cases included 3 cases of tonsillitis (pathogen: Haemophilus parainfluenzae in 1 case, Haemophilus influenzae in 2 cases), 4 cases of pneumonia (Staphylococcus aureus in 1 case, pathogen unknown in 3 cases), 2 cases of nephropyelitis (Escherichia coli in 2 cases), 1 case of purulent lymphadenitis (pathogen unknown), 1 case of purulent thyroiditis (mixed infection of Streptococcus milleri, Haemophilus aphrophilus and anaerobes), and 1 case of vulvar abscess (E. coli). Dose levels of CZON were 42.9 approximately 93.3 mg/kg/day divided into 3 or 4 times and the drug was intravenously injected for 6 to 12 days. Clinical efficacies were excellent in 4 cases, good in 5 cases, and poor in 3 cases, with the efficacy rate of 75.0%. The 3 cases with poor efficacy consisted of 1 case each of pneumonia complicated with chronic granulomatosis, purulent thyroiditis associated with piriform recess fistula, and purulent lymphadenitis of armpit developed after surgical operation of congenital heart disease. In the first 2 cases satisfactory efficacy was not obtained by chemotherapy alone, and complete cure was seen after surgical operation. Side effects were not observed clinically. One case each of slight prolongation of prothrombin time and transient elevations of GOT and GPT values were noted but no severe abnormalities were found in laboratory tests.(ABSTRACT TRUNCATED AT 250 WORDS)

Age Factors↗

PubMed1987

[Investigation on the use of amikacin in the newborn].

The use of amikacin (AMK) in newborns was investigated and the results obtained are summarized as follows. 1. AMK was administered to 3 rabbits at an intramuscular dose of 6 mg/kg. Mean blood levels determined according to methods of bioassay (BIO) and fluorescent immunoassay (FIA) were 28.6 and 22.2 micrograms/ml, respectively, at 30 minutes after dosing. Then, the blood levels declined rapidly. Mean T 1/2 values obtained with the above 2 assay methods were 0.76 and 0.63 hours, respectively. 2. When AMK was administered at a dose of 5.7 mg/kg to a 64 day-old newborn by drip intravenous infusion for 30 minutes, a peak blood level was attained at the end of drip intravenous infusion, which was 20.0 micrograms/ml according to BIO and was 15.5 micrograms/ml according to FIA. The blood levels declined gradually thereafter with a T 1/2 value of 2.33 hours (BIO) or 2.03 hours (FIA). When the drug was administered at 5.3 mg/kg to a 26 day-old newborn using the same infusion method, the peak blood level obtained at the end of drip intravenous infusion was 18.0 micrograms/ml according to BIO and was 14.8 micrograms/ml according to FIA, and T 1/2 values were 4.76 and 3.68 hours, respectively. 3. As there was a close correlation between the values obtained with BIO and with FIA in both rabbits and clinical cases, with a coefficient of 0.990, and also the BIO values could be estimated using a formula of FIA value X 1.2 + 2.2, it would be possible to monitor AMK levels in the blood of patients at bedside using the FIA.(ABSTRACT TRUNCATED AT 250 WORDS)

Amikacin↗

PubMed1986

Penetration of cefuzoname into the cerebrospinal fluid of rabbits.

Concentrations of cefuzoname in cerebrospinal fluid (CSF) were determined in a total of 16 rabbits, 5 with healthy meninges, 5 with Staphylococcus aureus meningitis, and 6 with Escherichia coli meningitis. Mean percentages of the maximum concentration of the drug in CSF versus that in serum were 0.57, 3.37, and 4.40% for healthy rabbits, those with staphylococcal meningitis, and those with E. coli meningitis, respectively. The percentages of the area under the concentration-time curve of cefuzoname in CSF versus that in serum were, in the order of healthy group, staphylococcal meningitis group, and E. coli meningitis group, 0.61, 4.99, and 8.04% at 15 to 60 min, 1.44, 7.09, and 12.7% at 15 to 120 min, and 1.87, 8.07, and 15.8% at 15 to 180 min after administration, showing significant differences between the healthy and meningitis groups. All of the values in the E. coli meningitis group were greater than those of the staphylococcal meningitis group, but the differences were not significant. The ratios of the half-life of cefuzoname in CSF to that in serum were 2.10, 1.98, and 3.37 for the healthy, staphylococcal meningitis, and E. coli meningitis groups, respectively, with no significant difference between the three groups. Cefuzoname seems to be among the middle ranks of beta-lactam agents as far as penetration rate is concerned; however, when its potent antibacterial activity and broad spectrum are taken into account, the concentrations in CSF in patients with meningitis seem worth examining.

Animals↗

PubMed1986

[Fundamental and clinical evaluation of imipenem/cilastatin sodium in the field of pediatrics].

A combination drug of imipenem (MK-0787), a new carbapenem antibiotic, and cilastatin sodium (MK-0791) at a ratio of 1:1 was used to treat infections in 8 children, and the concentrations of MK-0787 were determined in plasma, urine and pus of 1 patient and in cerebrospinal fluid of another patient. Eight patients, aged 2 months to 12 years (males: 3, females: 5), were treated with MK-0787/MK-0791. They consisted of 3 with urinary tract infections (causative organisms: E. coli, K. oxytoca plus E. faecalis, and unknown), and 1 patient each with pneumonia (H. influenzae), enteritis (Salmonella C1), cellulitis (S. aureus), purulent lymphadenitis (unknown) and purulent meningitis (E. coli). The dose, ranging from 7.4 mg/7.4 mg/kg to 11.8 mg/11.8 mg/kg, 3 or 4 times daily, was administered by a 30-minute or 60-minute intravenous drip infusion for 5 to 11 days. To the patient with purulent meningitis, however, 25.85 mg/25.85 mg/kg on the 1st day and 12.9 mg/12.9 mg/kg from the 2nd day were administered 4 times daily. Clinical responses in urinary tract infections were excellent in 2 and good in 1, and responses in pneumonia, enteritis, cellulitis, purulent lymphadenitis and purulent meningitis were excellent, good, good, excellent and poor, respectively. The efficacy rate in a total of 8 patients was 87.5%. As adverse reactions, a rash was observed in one patient and a convulsion in another. The rash disappeared after discontinuation of the administration of the drug and the convulsion stopped after a reduction of the dosage. As abnormal laboratory findings, slight prolongation of the prothrombin time was observed in 1 patient, but no bleeding tendency was noted. When MK-0787/MK-0791 (500 mg/500 mg, or 8.7 mg/8.7 mg/kg) was given by a 60-minute intravenous drip infusion to a 12-year-old boy with cellulitis, the peak plasma concentration of MK-0787 was 31.4 micrograms/ml occurring at the end of the infusion, and then the concentration decreased to 13.9 micrograms/ml in 0.5 hour, 8.9 micrograms/ml in 1 hour, 2.8 micrograms/ml in 2 hours, 0.63 microgram/ml in 4 hours and 0.14 microgram/ml in 6 hours. The half-life was 0.83 hour. These plasma levels provided concentrations exceeding MIC90's against major infective bacteria for 2 hours. The urinary recovery in the first 7 hours was 75.0%, and the urinary concentration was greater than 100 micrograms/ml for 5 to 7 hours.(ABSTRACT TRUNCATED AT 400 WORDS)

Bacterial Infections↗

PubMed1986

[Evaluation of the clinical effects of cefotiam against infections in neonates and premature infants].

Using cefotiam (CTM) against infections in neonates and premature infants, we obtained the following results: With intravenous administration of the drug to 2 cases each of pyoderma, pneumonia, and fetal infection, the drug was effective in all the cases except in 1 premature infant with pneumonia. Dose levels at individual injections were between 18.6 and 27.8 mg/kg, per dose, with an exception in 1 case of pyoderma (36.4-54.5 mg/kg), and 2 to 4 doses per day were given to each patient. For prophylactic purposes, the drug was administered to 1 case of turbid amniotic fluid and 3 cases of massive aspiration syndrome, and no infection was observed in any case. In a total of 11 cases consisting of the above mentioned 10 cases and an additional case which had been excluded from the evaluation because of the detection of P. aeruginosa, neither side effects nor abnormal laboratory values were recognized. In 5 cases of 4 to 31-day old infants, CTM concentrations in blood were measured after one-time intravenous injection of the drug at a dose level of about 20 mg/kg. Blood concentrations of CTM were low in 1 case with levels of 14.4 and 4.5 micrograms/ml at 30 minutes and 2 hours after the intravenous injection, respectively, whereas they were high in another case with readings of 82 and 65 micrograms/ml. In the remaining 3 cases, however, 30-minute and 2-hour values were between 41 to 52, and 13.5 to 22.8 micrograms/ml, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)

Bacterial Infections↗

PubMed1986

[Clinical evaluation of ceftazidime in infections in neonates and premature infants].

Ceftazidime (CAZ) was evaluated in the treatment of infections in neonates and premature infants. In 1 mature neonate (age: 14 days) administered with 30.3 mg/kg of CAZ by a single bolus intravenous injection, the serum concentration of CAZ was 50 micrograms/ml at 30 minutes after the dosing, and the elimination half-life was 1.38 hours. The urinary recovery rate of administered CAZ during the first 6 hours was 52.9%. In 6 neonates (mean gestational period: 37.8 weeks, mean birth weight: 2,508 g, mean age: 3.7 days) administered with ca. 20 mg/kg of CAZ by single bolus intravenous injections, the mean serum concentration of CAZ was 63.6 micrograms/ml at 30 minutes after the dosing, and the half-life was 3.78 hours. In 3 out of the above 6 neonates, the mean urinary recovery rate of CAZ during the first 6 hours was 59.8%. Five neonates and 2 infants with infections were given 18.4-65.9 mg/kg of CAZ b.i.d.-q.i.d. by intravenous injections. One of these cases was excluded from an evaluation for clinical efficacy, because CAZ was given only for 2 days. In the remaining 6 cases, clinical efficacy was excellent in 1 case of urinary tract infection (E. coli + E. faecalis), good in 3 cases of pneumonia (P. aeruginosa + K. pneumoniae: 1, P. aeruginosa: 1, and causative organism unknown: 1), and poor in 1 case of sepsis (S. aureus). In 1 case of asphyxia neonatorum contaminated with meconium, CAZ was used prophylactically, resulting with no infection. No clinically adverse effect was observed. Also no abnormality was observed in laboratory analyses in the 6 cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Bacterial Infections↗

PubMed1986

[Clinical study on cefixime granules in the field of pediatrics].

The absorption and excretion and clinical effectiveness of cefixime (CFIX) granules, a new oral cephalosporin, were studied with pediatric patients with tonsillitis and urinary tract infection (UTI). Peak serum concentrations in 3 children given orally a single dose of 3 mg/kg on fasting were 0.545 micrograms/ml at 2 hours in 1 patient, and 1.56 and 1.26 micrograms/ml at 4 hours in the other 2. The half-lives in the 3 patients were 3.21-3.42 hours, with an average of 3.29 hours. The urinary concentration during the first 6 hours was 36.5 micrograms/ml in 1 patient showing the low serum level, and the first 6-hour urinary recovery rate was 7.3%. In the other 2 patients, urinary concentrations and recovery rates up to 6 hours were 87 and 62 micrograms/ml, and 17.0 and 15.1%, respectively. The second 6-hour urinary concentrations and recovery rates were 35.5 and 20.8 micrograms/ml, and 12.7 and 8.8%, respectively. The urinary recovery rates up to 12 hours were 29.7 and 23.9%, respectively. CFIX was given orally to 19 children with 20 diseases in daily doses of 6.4-12.9 mg/kg in 2 or 3 divided portions for 3 to 12 days. Clinical evaluations were made on 18 diseases. Clinical effects of CFIX were excellent in 4, good in 7 and poor in 1 of the 12 patients with tonsillitis, and excellent in 5 and good in 1 of the 6 patients with UTI. The overall clinical effectiveness rate was 94.4%. No side effects were observed in any of the 19 patients. Hematological tests, showed slight elevation of blood platelet counts in 2 patients.(ABSTRACT TRUNCATED AT 250 WORDS)

Administration, Oral↗

PubMed1985

[Bacteriological and clinical evaluation of BRL 25000 (clavulanic acid-amoxicillin) granules in the pediatric field].

Bacteriological and clinical evaluations of BRL 25000 (1 part clavulanic acid plus 2 parts amoxicillin) granules in the pediatric field have been performed. The MICs of BRL 25000 against 25 clinically isolated strains of S. aureus, 40 E. coli, and 14 K. pneumoniae were compared with those of AMPC. Against beta-lactamase non-producing strains of S. aureus and E. coli, the MICs of both drugs were nearly equal, however, against beta-lactamase producing strains of these species and K. pneumoniae, BRL 25000 was superior to AMPC. The blood levels of AMPC and CVA after single oral administration of approximately 15 mg/kg of BRL 25000 granules to fasted children were studied in 3 subjects. The mean levels of AMPC and CVA peaked about 1 hour after administration at values of 11.40 and 5.49 micrograms/ml, respectively, with half-lives of 0.91 and 1.02 hours, and AUCs of 23.52 and 12.66 hr X micrograms/ml, respectively. The 6-hour urinary recovery of AMPC ranged from 30.59% to 52.03% and for CVA from 16.31% to 45.18%. There was no significant difference between the blood level of AMPC following single oral administration of approximately 10 mg/kg AMPC granules and that of AMPC following single oral administration of approximately 15 mg/kg BRL 25000 granules to the same children. Clinical evaluation of BRL 25000 granules administered orally 3-4 times a day at total daily doses of between 42.9-52.9 mg/kg resulted in improvement, judged excellent or good, in all 7 cases of tonsillitis and 2 cases of pyelonephritis. In particular, the clinical effect was excellent in the case of tonsillitis where a beta-lactamase producing H. influenzae was isolated. In the total 11 cases treated, including 2 cases of mycoplasmal pneumonia excluded from the clinical evaluation, 1 case of rash and eosinophilia was observed. No other adverse reactions or abnormal laboratory findings were observed. The taste and flavor of the drug were well accepted by the children. It was concluded that BRL 25000 granules are promising new drug which should be markedly useful in the treatment of infections in pediatric outpatients.

Administration, Oral↗

PubMed1985

[Clinical studies on cefminox in the field of pediatrics].

A new antibiotic of cephamycin group, cefminox (CMNX, MT-141), was evaluated clinically in the treatment of bacterial infections in children. The following results were obtained. One case of lacunar tonsillitis (due to H. influenzae) and 5 cases of urinary tract infections (due to E. coli in 2 cases, mixed infection due to E. coli and E. faecalis in 1 case, due to K. pneumoniae in 1 case and causative organism was unknown in 1 case) were treated intravenously with CMNX at daily doses ranging from 58.1 to 122.7 mg/kg in 3 divided doses. One case in which the treatment was discontinued after 1 day because of rashes was excluded from assessment of efficacy. Among the remaining 5 cases, CMNX was found ineffective for 1 case of mixed infection due to E. coli and E. faecalis. However, in all of the other 4 cases excellent results were obtained. As side effects, rashes developed in 1 case and slight elevation in GOT in 1 case out of 6 cases. Blood levels following bolus intravenous injection of 20 mg/kg of CMNX were 68, 45, 27, 10.2 and 3.1 micrograms/ml at 1/2, 1, 2, 4 and 6 hours, respectively, with T 1/2 of 1.27 hours. The urinary recovery rate within the first 6 hours was 78.6%.

Anti-Bacterial Agents↗

PubMed1985

[Basic and clinical studies on cefminox in the field of obstetrics and gynecology].

Human pharmacokinetics and clinical studies of cefminox (CMNX, MT-141) were carried out and the following results were obtained. The concentrations of CMNX transferred to the uterus and its appendages after CMNX 1 g intravenous injection were maintained above 12.5 micrograms/g during first 3 hours or more. The concentrations of CMNX transferred to the pelvic dead space exudate were above 12.5 micrograms/ml during 6 hours or more. Those concentrations were sufficiently effective against the major pathogens (Gram-negative and anaerobic bacteria) demonstrated in the field of obstetrics and gynecology. We administered CMNX to 4 cases with postoperative infections at a dose of 2 g per day (twice a day) for a period of 4-6 days. The clinical effect was excellent in 3, good in 1 case. No side effect was observed.

Abscess↗

PubMed1985

[Clinical studies of aspoxicillin in pediatrics].

A clinical and laboratory evaluation and a blood level studied on aspoxicillin (ASPC), a new injectable penicillin derivative; the following results were obtained. ASPC was intravenously administered in 3 or 4 divided doses at a daily dosage ranging from 83.3 to 111.9 mg/kg to 5 patients (1 case of lacunar tonsillitis caused by H. influenzae, 3 cases of pneumonia caused by H. influenzae, 1 case of pneumonia caused by E. coli). As the results, a global effect were excellent in 3 cases and good in 2 cases. The overall efficacy ratio was 100%. All isolated organisms were eradicated, excluding the only case of pneumonia due to H. influenzae infection. No side effects were found in any of the 7 patients including 2 patients who were dropped out the efficacy evaluation because of Mycoplasma pneumonia. Laboratory findings showed a slight elevation of GOT and GPT in 2 cases and temporary eosinophilia in 1 case. Blood level of ASPC in 2 cases after 10 mg/kg administration by intravenous injection was 28.5 or 35.5 micrograms/ml at 30 minutes, 14.3 or 20.7 micrograms/ml at 1 hour, 6.1 or 8.8 micrograms/ml at 2 hours, 1.3 or 3.02 micrograms/ml at 4 hours. The half-life was 0.81 or 1.01 hours, respectively. Judging from the results of this blood level and the MIC of ASPC against clinically isolated organisms, good efficacy will be obtained to pediatric infections by the sensitive strains, if it is given 10 mg/kg to mild patients or 20 mg/kg to moderate or severe patients in 3 or 4 divided dose at a daily dosage.

Amoxicillin↗

PubMed1985

[Clinical evaluation of aztreonam in pediatrics].

Clinical studies of aztreonam (AZT) were performed in 10 pediatric cases. One transient pyuria case with 10(3)/ml E. faecalis detected in urine was excluded from clinical evaluation, because the presence of infection was unclear. Results were as follows: AZT was effective on 1 patient with meningitis (causative organism: H. influenzae), who was treated with 41.7 mg/kg 4 times a day. Results of administration of 58.1-78.9 mg/kg 3 or 4 times a day by intravenous injection for 1 E. coli sepsis-and-pyelonephritis complication case and 7 pyelonephritis cases (causative organisms: E. coli in 1, E. coli + E. faecalis in 1, E. faecalis in 1, P. aeruginosa in 3 and unknown in 1) were excellent in 4, good in 2 and poor in 2 cases. The pathogens of the 2 poor cases were E. faecalis and P. aeruginosa, respectively. Six of the pyelonephritis cases had vesicoureteral refluxes as an underlying condition. Clinical and microbiological effects of AZT were considered to be closely correlated with its MIC values. No side effect was recognized. Though abnormal laboratory findings were obtained in 4 cases, including elevations of GOT X GPT in 2 cases, GPT elevation in 1 case and plateletcount increase in 1 case. All of these abnormalities were minor and transient. The serum concentrations of AZT for a two-month-old patient with pyelonephritis were 65, 50, 35, 22.8 and 12.4 micrograms/ml at 1/2, 1, 2, 4 and 6 hours, respectively and T1/2 was 2.42 hours after injecting AZT 20 mg/kg by intravenous injection.(ABSTRACT TRUNCATED AT 250 WORDS)

Age Factors↗