ampicillin medication side effects
Common side effects of ampicillin include: 1  nausea, 2  vomiting, 3  loss of appetite, 4  diarrhea, abdominal pain, 5  rash, itching, 6  headache, confusion  and. dizziness.
In Summary. Commonly reported side effects of ampicillin include: eosinophilia and skin rash. See below for a comprehensive list of adverse effects. For the Consumer. Applies to ampicillin: oral capsules, oral for suspension, parenteral powder for injection or infusion. Side effects include: GI effects (diarrhea, nausea), rash.