Get emergency medical help if you have signs of an allergic reaction (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning in your eyes, skin pain, red or purple skin rash that spreads and causes blistering and peeling).
Seek medical treatment if you have a serious drug reaction that can affect many parts of your body. Symptoms may include: skin rash, fever, swollen glands, muscle aches, severe weakness, unusual bruising, or yellowing of your skin or eyes.
Call your doctor at once if you have:
severe stomach pain, diarrhea that is watery or bloody;
a seizure (convulsions);
sores or white patches in your mouth or throat (yeast infection or "thrush");
severe tingling or numbness; or
low red blood cells (anemia)--pale skin, unusual tiredness, feeling light-headed or short of breath, cold hands and feet.
Common side effects may include:
headache;
nausea, vomiting, diarrhea, constipation;
rash; or
anemia.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Meropenem side effects (more detail)
