What is the purpose of an antibiotic?

The purpose of an antibiotic is to target and eliminate specific microorganisms, particularly bacteria, that cause infections. Antibiotics work by either killing the bacteria or inhibiting their growth, allowing the body's immune system to effectively combat the infection. This targeted action makes antibiotics essential for treating bacterial infections, helping patients recover and preventing complications that can arise from untreated infections.

In contrast, medications that treat viruses are not classified as antibiotics, as antibiotics are ineffective against viral infections. Pain relievers serve a different function by alleviating discomfort rather than addressing the underlying cause of infections. Additionally, while some drugs can enhance immune function, antibiotics specifically focus on bacterial pathogens, not on boosting overall immune response.