Medicine & Health What are the big four antibiotics? March 5, 2026 by Myaya | Leave a Comment The "big four" antibiotics, a term often used in a general context, typically refers to the four major classes of antibiotics that have historically been foundational in treating bacterial infections: penicillins, cephalosporins, macrolides, and fluoroquinolones. These classes represent a broad spectrum of antibacterial activity and have been crucial in modern medicine. Understanding the "Big Four" […] Read more ยป