What side effects may I notice from receiving Benznidazole?

Side effects that you should report to your care team as soon as possible:
-Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
-Infection—fever, chills, cough, or sore throat
-Low red blood cell level—unusual weakness or fatigue, dizziness, headache, trouble breathing
-Pain, tingling, or numbness in the hands or feet
-Rash, fever, and swollen lymph nodes
-Redness, blistering, peeling, or loosening of the skin, including inside the mouth
-Unusual bruising or bleeding
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
-Diarrhea
-Headache
-Loss of appetite with weight loss
-Nausea
-Stomach pain
-Vomiting

This list may not describe all possible side effects for Benznidazole. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.