Dive into the world of pharmacology as we explore how warfarin interacts with antibiotics at a molecular level. This episode highlights the crucial role of CYP2C9 metabolism in regulating S-warfarin and explains why certain antibiotics, like metronidazole and fluconazole, can significantly impact INR levels. We also unpack the challenge of separating true drug-drug interactions from infection-driven effects, giving you a clear look at the science behind these complex interactions. Perfect for pharmacists, clinicians, and anyone fascinated by how drugs work in the body.