Used to treat a wide range of bacterial infections including respiratory tract infections, urinary tract infections, skin infections, and ear infections. Commonly prescribed for bronchitis, pneumonia, and sinusitis caused by susceptible bacteria. Also used in combination with other antibiotics to eradicate Helicobacter pylori in patients with peptic ulcer disease. Effective against many gram-positive and some gram-negative bacteria. Often chosen for its broad-spectrum activity and good oral absorption. Widely used in both adult and pediatric populations due to favorable safety profile and availability in multiple dosage forms.