In this research, Raman spectroscopic analysis was conducted on widely used antibacterial drugs containing a furan ring — furacilin (nitrofural), furadonin (nitrofurantoin), and furazolidone. The spectra were recorded and analyzed using the R-532 Raman spectrometer. Characteristic peaks associated with the furan ring and nitro groups were identified, and spectral differences among the compounds were highlighted. This study demonstrates the effectiveness of Raman spectroscopy in distinguishing structurally similar pharmaceutical substances, particularly furan derivatives, and underscores its utility for compound identification and quality control of drug products.