Amoxicillin is a penicillin-type antibiotic used to treat a variety of bacterial infections. Its primary uses include:

• Respiratory tract infections such as pneumonia, bronchitis, sinusitis, and tonsillitis.
• Ear, nose, and throat infections including acute otitis media and pharyngitis.
• Skin and soft tissue infections.
• Urinary tract infections.
• Dental infections and abscesses.
• Treatment of stomach ulcers caused by Helicobacter pylori when used in combination with other medications.
• Lyme disease, particularly early cutaneous Lyme borreliosis.
• Prevention of bacterial endocarditis in high-risk individuals undergoing dental or surgical procedures.
• Post-exposure prophylaxis for anthrax.
• Periodontitis and actinomycosis when combined with other antibiotics.

Amoxicillin is effective against a broad range of gram-positive bacteria and some gram-negative bacteria, working by inhibiting bacterial growth. It is not effective against viral infections such as colds or the flu

. In summary, amoxicillin is widely prescribed for bacterial infections affecting the respiratory tract, ears, throat, skin, urinary tract, and stomach, as well as for certain prophylactic uses in high-risk patients.