Used primarily as a long-acting antibiotic to treat bacterial infections, it is particularly effective against streptococcal infections, including strep throat and syphilis. Its slow absorption into the bloodstream allows for sustained therapeutic levels, reducing the frequency of administration. Commonly administered via intramuscular injection, it is especially useful in settings where patient compliance with oral medication regimens is a concern. It is also employed in the prevention of rheumatic fever and in the treatment of certain skin infections. Its extended-release properties make it a practical choice for managing chronic or recurrent infections.