Khazi NT, Gandla KS. From Targeted LC-MS/MS to High-Resolution Mass Spectrometry: Emerging Analytical Strategies for the Characterization of Antiviral and Antibacterial Drugs, Impurities and Degradation Products: A Critical Review. Pharmacol. Toxicol. Res. 2026;2:41–54. doi:10.68163/ptr.2026.68