Augmentin Reactions

Augmentin® (amoxicillin and clavulanate potassium) is a prescription antibiotic that may cause a number of side effects. In clinical studies, the most common reactions to Augmentin that were reported included:
 
  • Diarrhea or loose stools -- in up to 9 percent of people
  • Nausea -- up to 3 percent
  • Vomiting -- up to 1 percent.
     
Let your healthcare provider know if you experience diarrhea that is severe or that lasts for more than two or three days. While diarrhea is a common side effect of the antibiotic, severe or prolonged diarrhea may be a sign of a serious Augmentin reaction.
 
Augmentin contains an antibiotic that belongs to the penicillin group of antibiotics. If you are allergic to penicillin, you may also develop potentially deadly allergic reactions with Augmentin. Let your healthcare provider know immediately if you notice any signs of an allergic reaction, such as:
 
  • A rash
  • Itching
  • Hives
  • Wheezing
  • Swelling of the mouth or lips
  • Difficulty breathing.
 
(Click Augmentin Side Effects and Augmentin Warnings and Precautions to learn about other possible reactions and for a more complete list of potentially serious side effects that require prompt medical attention.)
 

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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
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