Chemical Stability Study of H1 Antihistaminic Drugs from the First and the Second Generations, Diphenhydramine, Azelastine and Bepotastine, in Pure APIs and in …

A Gumieniczek, K Lejwoda, N Data - Molecules, 2022 - mdpi.com
The chemical stability of diphenhydramine (DIPH), azelastine (AZE) and bepotastine (BEPO)
was examined in solutions and solids. The drugs were subjected to high temperature (70° C …

Stress degradation study on entrectinib and characterization of its degradation products using HRMS and NMR

V Dhiman, S Singh, A Balhara, BS Kushwah… - … of Pharmaceutical and …, 2022 - Elsevier
Entrectinib is a potent inhibitor of receptor tyrosine kinases and anaplastic lymphoma
kinase. It is designated as an orphan drug. There exists no report of comprehensive …

Boosting bepotastine fluorescence by switching off intramolecular photoinduced electron transfer: Application to eye drops and aqueous humor

AM Saad, JJM Nasr, AK El-Deen - … Acta Part A: Molecular and Biomolecular …, 2025 - Elsevier
Abstract Bepotastine (BPT), a second-generation antihistamine used for treating allergic
rhinitis and pruritus, requires precise dosage calculation and accurate measurement in …

[HTML][HTML] Two Small Molecule Drugs with Topical Applications, Diflunisal and Naphazoline, and Their Potentially Toxic Photodegradants: Analysis by Chemical and …

K Lejwoda, A Gumieniczek, A Filip, B Naumczuk - Molecules, 2024 - mdpi.com
Because of their topical application in patients and meaningful UV/VIS absorptive properties,
the degradation and potential toxicity under irradiation of diflunisal (DIF) and naphazoline …

Insights into the degradation chemistry of tazarotene, a third generation acetylenic retinoid: LC-HRMS (Orbitrap), LC-MSn and NMR characterization of its degradation …

DK Singh, A Sahu, A Balhara, S Giri, S Singh - Journal of Pharmaceutical …, 2020 - Elsevier
Tazarotene is a prodrug that belongs to the acetylenic class of retinoids. The drug was
subjected to hydrolytic, oxidative and photolytic stress testing to establish its comprehensive …

A comparative electronic structure analysis of reactive metabolites of oxicams

J Burman, K Manchanda, KA Bhakhar… - Computational and …, 2024 - Elsevier
Oxicams are important drugs that act as anti-inflammatory agents, of them, piroxicam and its
prodrugs are in daily use. The metabolic profiles of oxicams were explored using mass …

Pharmacokinetic Modeling of Bepotastine for Determination of Optimal Dosage Regimen in Pediatric Patients with Allergic Rhinitis or Urticaria

S Yoon, BH Jin, CO Kim, K Park, MS Park, D Chae - Pharmaceutics, 2024 - mdpi.com
Bepotastine, a second-generation antihistamine for allergic rhinitis and urticaria, is widely
used in all age groups but lacks appropriate dosing guidelines for pediatric patients, leading …

Photolytic and oxidative degradation behavior of anticancer drug venetoclax: characterization of new degradation products using high resolution mass spectrometry

V Dhiman, S Ahirwar, S Chaganti… - Journal of Analytical …, 2023 - Springer
Venetoclax (VEN), an anticancer drug, was subjected to photolytic and oxidative
degradation studies. The comprehensive degradation profiling of VEN in both conditions …

Comprehensive degradation profiling and influence of different oxidizing reagents on tinoridine hydrochloride: Structural characterization of its degradation products …

V Dhiman, K Patil, L Velip, MVNK Talluri… - Rapid …, 2022 - Wiley Online Library
Rationale Stress testing on tinoridine hydrochloride was carried out using a
multidimensional approach. This included different conditions: hydrolytic (acidic, alkaline …

The Study on Timolol and Its Potential Phototoxicity Using Chemical, In Silico and In Vitro Methods

K Lejwoda, A Gumieniczek, A Filip, B Naumczuk - Pharmaceuticals, 2024 - mdpi.com
Timolol (TIM) is a non-selective ß-adrenergic receptor antagonist used orally for the
treatment of hypertension and heart attacks, and topically for treating glaucoma; lately, it has …