What are the side effects of aztreonam?

Mild diarrhea is a common side effect of taking antibiotics like aztreonam. You may experience other symptoms of stomach upset, including nausea and vomiting as well. You may also experience rash, pain, discomfort or swelling of the veins. If these side effects persist or get worse, contact your doctor. Notify your doctor if you are experiencing severe diarrhea, bloody stools or stomach cramps. A more serious form of diarrhea called pseudomembranous colitis can develop as a side effect, either while taking the antibiotic or up to several months later.

Also, let your doctor know right away if you experience any of the following side effects, as they may be signs of a medical emergency:

  • signs of an allergic reaction, such as hives or an itchy rash, swelling around the mouth or face or chest tightness and difficulty breathing
  • chest pains
  • chills or fever
  • muscle pains
  • swelling or pain around the site of injection
  • unusual tiredness, bruising or bleeding
  • vaginal irritation or discharge

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.