Augmentin, while generally safe and effective, can cause side effects. The most common include diarrhea, nausea, and vomiting. These are usually mild and resolve without treatment. However, severe diarrhea, particularly if bloody or watery, requires immediate medical attention as it could indicate Clostridium difficile infection.
Gastrointestinal Issues
Beyond the common nausea and vomiting, some individuals experience abdominal pain, indigestion, or changes in bowel habits. Less frequently, inflammation of the colon (colitis) may occur. If you experience severe or persistent gastrointestinal symptoms, contact your doctor.
Allergic Reactions
Allergic reactions, ranging from mild skin rashes to severe anaphylaxis, are possible. Anaphylaxis is a life-threatening emergency requiring immediate medical attention. Symptoms include difficulty breathing, swelling of the face, lips, or tongue, and hives. If you experience any allergic reaction, discontinue Augmentin and seek medical help immediately.
Other Potential Side Effects
Less common side effects include headache, dizziness, and yeast infections (candidiasis). Changes in blood counts (e. g., decreased white blood cells) are also possible, though rare. Your doctor will monitor for these during treatment. Report any unusual symptoms to your healthcare provider.


