Rethinking Antibiotic Use: Experts Question 'Finish the Course' Rule

Infectious disease experts are reevaluating the long-standing advice to complete antibiotic courses, citing a lack of evidence supporting the idea that stopping early leads to resistant bacteria. Studies have shown that the type of infection, bacteria, and antibiotic penetration play a role in treatment duration. For example, strep throat can recur after a short course, but this is not due to resistant bacteria. Instead, it's often due to reinfection or incomplete antibiotic penetration. Researchers now focus on finding the shortest effective treatment duration to minimize disruption to the microbiome. Clinical trials have found that shorter courses can be just as effective as longer ones, with fewer side effects. As a result, doctors now prescribe shorter courses, often three to seven days, but this is not always the case. Complicated infections may require longer treatment. Ideally, healthcare providers would consider individual factors and use up-to-date evidence to determine treatment duration. Following their advice is still the best course of action, as their medical judgment may be imperfect due to the complexity of the issue.