Pharmacokinetics and Pharmacodynamics of Commonly Used Antibiotics: A Comprehensive Review

Antibiotics are common agents used in modern healthcare. This was not always the case. From ancient times, people sought ways to treat those with infections. Dyes, molds, and even heavy metals were thought to hold promise for healing. Various microorganisms have medical significance, including bacteria, viruses, fungi, and parasites. Antibiotics are compounds that target bacteria and, thus, are intended to treat and prevent bacterial infections. This activity will examine the various classes of antibiotics, their mechanisms of action, bacterial susceptibilities, and potential adverse events. Antibiotics are chemical substances that inhibit the growth of or destroy bacteria and are widely used in the treatment of bacterial infections. Since the discovery of penicillin by Alexander Fleming in 1928, antibiotics have revolutionized modern medicine, drastically reducing morbidity and mortality from infectious diseases. Antibiotics are classified based on their structure, mechanism of action, and spectrum of activity. Common classes include penicillins, cephalosporins, tetracyclines, aminoglycosides, and fluoroquinolones. However, the widespread and often inappropriate use of antibiotics has led to the emergence of antibiotic-resistant bacteria, posing a significant global health threat. This abstract provides a brief overview of the types, mechanisms, applications, and challenges related to antibiotics, emphasizing the need for responsible use and continued research to combat resistance and discover novel antimicrobial agents.