It is very important that your doctor check your progress to make sure that this medicine is working properly and to check for unwanted effects.
Meropenem may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Tell your doctor or nurse right away if you or your child have itching, hives, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth after you receive this medicine.
Some patients may develop tremors or seizures while receiving this medicine. If you or your child already have a history of seizures and you are taking a medicine called valproic acid (Depakene®), continue taking the medicine and tell your doctor.
Meropenem may cause diarrhea, and in some cases it can be severe. Do not take any medicine to treat diarrhea without first checking with your doctor. Diarrhea medicines may make the diarrhea worse or make it last longer. If you have any questions about this or if mild diarrhea continues or gets worse, check with your doctor.