In this study, simple, fast and reliable cyclic voltammetry (CV), linear sweep voltammetry (LSV), square wave voltammetry (SWV) and differential pulse voltammetry (DPV) methods were developed and validated for determination of bosentan in pharmaceutical preparations. The proposed methods were based on electrochemical oxidation of bosentan at platinum electrode in acetonitrile solution containing 0.1 M TBACIO4. The well-defined oxidation peak was observed at 1.21 V. The calibration curves were linear for bosentan at the concentration range of 5-40 µg/mL for LSV and 5-35 µg/mL for SWV and DPV methods, respectively. Intra- and inter-day precision values for bosentan were less than 4.92, and accuracy (relative error) was better than 6.29%. The mean recovery of bosentan was 100.7% for pharmaceutical preparations. No interference was found from two tablet excipients at the selected assay conditions. Developed methods in this study are accurate, precise and can be easily applied to Tracleer and Diamond tablets as pharmaceutical preparation.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4403060 | PMC |
Publication Analysis
Top Keywords
Similar Publications
Assessing Anti-Acne Potentials Via in-vitro, Ex-vivo, and in-vivo Models: A Comprehensive Approach.
Curr Drug Targets
January 2025
Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India.
Acne vulgaris is the 8th most commonly prevailing skin disorder worldwide. Its pervasiveness has been predominant in juveniles, especially males, during adolescence and in females during adulthood. The lifestyle and nutrition adopted have been significantly reported to impact the occurrence and frequency of acne.
View Article and Find Full Text PDFChallenges for switching central nervous system and psychiatric medication products: A review of the literature.
J Psychopharmacol
January 2025
Department of Psychiatry, McGill University, Montreal, QC, Canada.
Background: Switching between versions of medication products happens commonly despite challenges in achieving bioequivalence and therapeutic equivalence. Central nervous system and psychiatric drugs, especially those that are technically demanding to manufacture and have complex pharmacokinetic properties, such as long-acting injectables (LAIs), pose particular challenges to bioequivalence and safe and efficacious drug switching.
Aims: To assess whether drugs deemed "bioequivalent" are truly interchangeable in drug switching.
Double-blind randomised trial of saline solution for gargling and nasal rinsing in SARS-CoV-2 infection.
J Glob Health
December 2024
Department of Anesthesiology, Critical Care and Pain Medicine, UTHealth, Houston, Texas, USA.
Background: Previous studies have shown that hypertonic saline nasal irrigation and gargling reduced the duration of symptoms in upper respiratory infections caused by coronavirus. This study aims to investigate the effects of two saline regimens on symptoms associated with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2).
Methods: Between 2020 and 2022, individuals aged 18-65 years who tested positive for SARS-CoV-2 infection via polymerase chain reaction (PCR) were randomly assigned to either low- or high-saline regimens for 14 days.
. Extract Attenuates Inflammation and Oxidative Damage in Cisplatin-Induced Cardiotoxicity in Rats by Promoting M2 Macrophage Polarization.
Mediators Inflamm
January 2025
Faculty of Medical Sciences, Department of Genetics, University of Kragujevac, Kragujevac, Serbia.
L. fruits and leaf extracts have a broad range of immunomodulatory, anti-inflammatory, and antioxidant effects; however, their effects on cardiac protection have not been investigated. The study aims to test the biological activity of L.
View Article and Find Full Text PDFSolid Self-Microemulsifying Drug Delivery System for Improved Oral Bioavailability of Relugolix: Preparation and Evaluation.
Int J Nanomedicine
January 2025
School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, 330006, People's Republic of China.
Purpose: To improve the oral absorption of relugolix (RLGL), which has low oral bioavailability due to its low solubility and being a substrate of P-glycoprotein (P-gp). A solid self-microemulsifying drug delivery system of relugolix (RLGL-S-SMEDDS) was prepared and evaluated in vitro and in vivo.
Methods: The composition of the solid self-microemulsifying drug delivery system (S-SMEDDS) was selected by solubility study and pseudo-ternary phase diagram, and further optimized by Design-Expert optimization design.
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!