Side effects     

Although side effects from piperacillin are not common, they can occur. Tell your health care provider if any of these symptoms are severe or do not go away:

• upset stomach
• diarrhea
• unpleasant or abnormal taste
• gas

If you experience any of the following symptoms, call your health care provider immediately:

• rash
• itching
• fever
• chills
• facial swelling
• wheezing
• difficulty breathing
• unusual bleeding or bruising
• dizziness
• seizures
• sore mouth or throat