Microbact 500mg Tablet is an antibiotic used to treat various types of bacterial infections of the respiratory tract, ear, nose, throat, lungs, skin, and eye in adults and children. It is also effective in typhoid fever and some sexually transmitted diseases like gonorrhea.Microbact 500mg Tablet is taken orally, preferably one hour before or 2 hours after a meal. It should be used regularly at evenly spaced time intervals as prescribed by your doctor. Do not skip any doses and finish the full course of treatment even if you feel better. Stopping the medicine too early may lead to the return or worsening of the infection.