Curelin Capsule is used to treat certain bacterial infections such as ear, nose and throat infections, inflammation of the bronchial tubes, infection of the lungs, urinary tract infections, sexually transmitted disease (gonorrhea), gynecological infections, severe blood infection (septicemia), inflammation of the abdominal wall (peritonitis), inflammation of the heart valve (endocarditis), infection of the brain and spinal cord (meningitis), enteric fever, stomach or intestinal infections. This medicine works by destroying the growth of bacteria in the body.