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The pharmacokinetics of racemic ibuprofen and its stereoisomers have been described in adults, but little has been reported for children. The pharmacodynamics of acetaminophen and ibuprofen have not been well described in either adults or children. Children (N = 39; age range, 11 months to 11 1/2 years) were randomly selected to receive a single dose of(More)
Plasma clonazepam (CZP) and its metabolite [7-aminoclonazepam (7ACZP) and 7-acetamidoclonazepam (7AACZP)] concentrations were measured during a single dosing interval in 10 pediatric epilepsy patients (2-18 years, 11-102 kg) who had been receiving CZP therapeutically from 2 weeks to 4 years. These concentrations were used to determine CZP and metabolite(More)
Hydroxyapatite (HA)-coated implants for hemiarthroplasty for fractures of the femoral neck offer the advantages of stable and permanent fixation. Since April 1994, we have treated 562 patients using the JRI Furlong HA-coated hemiarthroplasty system at the Worthing and Southlands Hospitals. Fracture of the fully-HA-coated stainless steel stem was seen in two(More)
The influence of intermittent benzodiazepine treatment on anticonvulsant tolerance was studied by comparing mice treated either daily or on alternate days with clonazepam, 0.25 mg/kg, i.p., administered twice a day. Tolerance was assessed by the ability of clonazepam to prevent pentylenetetrazol (PTZ) induced clonic convulsions. In mice treated daily with(More)
The relationship between anticonvulsant tolerance to clonazepam and benzodiazepine receptor changes was studied in amygdala kindled rats. Fully kindled rats were given 1 mg/kg clonazepam (clonazepam treated) or vehicle (kindled control) orally three times per day for 4 weeks. During chronic treatment, amygdala stimulation was given twice per week, 30 min(More)
The purpose of our study was to evaluate the hypothesis that much of the reported variability in the range of concentrations of plasma clonazepam (and also in the range of concentrations of its major metabolite, 7-aminoclonazepam) encountered in pediatric epilepsy patients is due to collection of samples at random times after dosing. High-performance liquid(More)
Time-concentration studies of clonazepam (CZP) were performed in 7-, 14-, and 28-day-old Sprague-Dawley rats. Blood samples and brains were collected at specific intervals following a single subcutaneous (SC) injection of 2.5 mg/kg of CZP. CZP concentrations were measured both in plasma and brain samples by high performance liquid chromatography.(More)
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