Introduction Rifaximin is a poorly absorbed rifamycin antibiotic primarily used for gastrointestinal infections and disorders. It acts locally within the gastrointestinal tract and is commonly prescribed for traveler’s diarrhea, hepatic encephalopathy, and irritable bowel syndrome with diarrhea (IBS-D). Rifaximin inhibits bacterial RNA synthesis, leading to suppression of intestinal bacterial growth. Mechanism of Action (Step-wise) A … Read more
Introduction Rifampicin, also known as rifampin, is a bactericidal antibiotic primarily used in the treatment of tuberculosis and other mycobacterial infections. It belongs to the rifamycin class and acts by inhibiting bacterial RNA synthesis. Rifampicin is an essential first-line antitubercular drug and is also used in prophylaxis against meningococcal and Haemophilus influenzae infections. Mechanism of … Read more
Introduction Ribavirin is a broad-spectrum antiviral drug used in combination therapy for chronic hepatitis C infection and in certain viral respiratory infections such as respiratory syncytial virus (RSV). It is a synthetic guanosine analog that interferes with viral RNA synthesis and replication through multiple mechanisms. Mechanism of Action (Step-wise) A key exam point is that … Read more
