GATITOP is used in the treatment of bacterial infections. It is also used in infections of urinary tract, tonsils, sinus, nose, throat, female genital organ, skin & soft tissues and lungs (pneumonia). GATITOP is an antibiotic. It works by stopping the action of a bacterial enzyme called DNA-gyrase. This prevents the bacterial cells from dividing and repairing, thereby killing them. Common side effects of GATITOP Headache, Vomiting, Nausea, Stomach pain, Diarrhea, Dizziness