antibiotics (e.g., tetracycline, erythromycin)

Antibiotics are medicines that fight bacterial infections by either killing bacteria or stopping their growth. Tetracycline works by blocking bacteria from producing proteins they need to survive, while erythromycin prevents bacteria from making essential proteins, hindering their ability to grow. These drugs target specific features of bacteria, making them effective against infections such as pneumonia, skin infections, and urinary tract infections. However, antibiotics are not effective against viruses like the common cold or flu. Proper use and completion of prescribed courses are crucial to prevent resistance and ensure the bacteria are fully eliminated.