Gas-liquid chromatography with nitrogen-phosphorus detection was used to analyze blood and urine from a volunteer who ingested 50 mg of cyclizine hydrochloride. A peak blood cyclizine concentration of 69 ng/mL was observed 2 hr after drug administration, and the levels declined thereafter in a biphasic manner, with estimated half-lives of 7 and 24 hr for the early and late phases, respectively. The peak urine cyclizine concentration of 12.5 ng/mL was achieved at 4 hr after administration; only 0.01% of the dose was excreted in the 24 hr urine. Norcyclizine was not observed in blood or urine; however, the detectability of the method for this metabolite is poor relative to the parent drug.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/jat/8.2.97 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Acute kidney injury in paediatric kidney transplant recipients.
Pediatr Nephrol
January 2025
NIHR Great Ormond Street Hospital Biomedical Research Centre, University College London Great Ormond Street Institute of Child Health, London, UK.
Acute kidney injury (AKI) in paediatric kidney transplant recipients is common. Infection including urinary tract infection (UTI) and rejection are the most common causes in children. Surgical complications often cause AKI early post-transplant, whereas BK polyomavirus nephropathy rarely occurs in the first month post-transplant.
View Article and Find Full Text PDFCalcium to magnesium ratio as a superior biomarker for nephrolithiasis detection in primary hyperparathyroidism.
Sci Rep
January 2025
Department of Internal Medicine, Bursa Sehir Training and Research Hospital, University of Health Sciences, Bursa, Turkey.
Primary hyperparathyroidism (pHPT) is marked by mineral imbalances, often leading to nephrolithiasis and osteoporosis. While imaging remains the cornerstone for stone detection, there is growing interest in biochemical markers that could enhance diagnostic accuracy. This study investigates the calcium-to-magnesium (Ca/Mg) ratio as a novel biomarker for nephrolithiasis, comparing its utility to traditional 24-h urinary calcium excretion and exploring its broader clinical implications.
View Article and Find Full Text PDFMaternal urinary levels of PAH metabolites, umbilical cord blood telomere length and anthropometric indices in newborns.
Ecotoxicol Environ Saf
January 2025
Department of Rehabilitation, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China. Electronic address:
The existing evidence indicating that prenatal exposure to polycyclic aromatic hydrocarbons (PAHs) is associated with a range of adverse outcomes, including alterations in anthropometric indices, underscores the need for further investigation into the underlying mechanisms. This study aims to examine the effects of prenatal PAH exposure on anthropometric indices and telomere length (TL), as well as to explore whether changes in TL can serve as a predictor of alterations in anthropometric measures. The study was conducted in Shenyang, China, with 2460 pregnant women participating between 2022 and 2023.
View Article and Find Full Text PDFConfined active area and aggregation kinetic-based AuNPs@PVP nanosensors for simultaneous colorimetric detection of cysteine and homocysteine as homologues in human urine and serum.
Mikrochim Acta
January 2025
College of Chemistry, Chemical Engineering & Environmental Science, Minnan Normal University, Zhangzhou, 363000, China.
The detection of cysteine (Cys) and homocysteine (Hcy) in biological fluids has great significance for early diagnosis, including Alzheimer's and Parkinson's disease. The simultaneous determination of Cys and Hcy with a single probe is still a huge challenge. To enlarge the differences in space structure (line and ring) and energy (-721.
View Article and Find Full Text PDFEvaluation of AUTION EYE AI-4510 flow cell morphology analyzer for counting particles in urine.
Clin Chem Lab Med
January 2025
Department of Nephrology, Ghent University Hospital Ghent, Belgium.
Objectives: We evaluated the performance of a novel flow cell morphology analyzer AUTION EYE AI-4510 for counting particles in urine.
Methods: Analytical performance was assessed according to the EFLM European Urinalysis Guideline 2023. Trueness was compared by analyzing 1.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!