Used primarily as an antibacterial agent, especially in the treatment of respiratory tract infections, skin and soft tissue infections, and sexually transmitted diseases like chlamydia. It is effective against a range of Gram-positive bacteria and some Gram-negative organisms. Due to its favorable tissue penetration, it accumulates well in lungs, tonsils, and genital tissues, making it suitable for treating intracellular pathogens such as Chlamydia trachomatis and Mycoplasma pneumoniae. Commonly prescribed in pediatric and adult populations where penicillin allergy is a concern. Also used in some countries as a prophylactic agent in dental and surgical procedures.