Merofast-TZ Injection is a combination of two antibiotic medicines. It is used to treat severe bacterial infections of the skin, lungs, stomach, urinary tract, blood, brain, and others. It works by killing and stopping the growth of the bacteria that cause these problems. Merofast-TZ Injection is given by a doctor or a nurse. You should not self-administer this medicine at home. The dose and duration will depend on what type of infection you have, where it is in the body, and how serious it is. Get the injection as long as your doctor has prescribed it to get the most benefit from it. If you stop getting the injection, the infection may return or worsen.Some people may develop side effects like nausea, vomiting, diarrhea, rash, or local redness and swelling at the site of injection. These side effects are usually temporary and go away during treatment as your body adjusts to the medicine. Consult your doctor if these side effects bother you or do not go away.Before starting treatment with this medicine, you should tell your doctor if you have epilepsy, liver, or kidney problems, or if you are allergic to any antibiotic. While using it, you may be advised blood tests to monitor your blood cells and kidney function. Consult your doctor if you are pregnant or breastfeeding to make sure it is safe for you and the developing baby.