Acute & chronic bronchitis, lobar & bronchial pneumonia, empyema, pulmonary abscess, tonsillitis, sinusitis, otitis media; cystitis, urethritis, pyelonephritis; septic abortion, puerperal sepsis, pelvic inflammatory disease, chancroid, gonorrhea; furunculus & abscess, cellulitis, wound infection; peritonitis; myelitis; sepsis, intra-abdominal sepsis; dental infections or infection after operation.