Meronem is an antibiotic that is used to treat severe infections of the skin, lungs, stomach, urinary tract, blood, and brain (eg. meningitis). It works by killing the bacteria that cause these problems. However, it will not treat a viral infection. Meronem is commonly used to treat critically ill patients admitted to the hospital. This medicine is given by drip/infusion or by direct injection into a vein, under the supervision of a doctor or a nurse. The dose will depend on what type of infection you have, where it is in the body, and how serious it is. You should keep on taking the injection for as long as you have been prescribed, even if your symptoms quickly improve. If you stop taking it too early the infection may return or worsen. Some people may develop side effects like headache, nausea, constipation, diarrhea, anemia, vomiting, and rash. These side effects are usually temporary and go away 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 (seizures), 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 cell count and kidney function. This medicine is generally regarded as safe to use in pregnancy and breastfeeding if prescribed by the doctor.