Aciclovir generally has a good safety profile, but some people experience side effects. Common side effects include headache, nausea, and diarrhea. These usually are mild and resolve without treatment. If they persist or worsen, consult your doctor.
Less Common Side Effects
Less frequently, you might experience dizziness, vomiting, or abdominal pain. Skin reactions like itching or rash are also possible. Rarely, aciclovir can affect your kidneys, so drink plenty of fluids while taking it. Inform your doctor immediately if you notice any changes in your urine output or experience unusual fatigue.
Serious Side Effects
While uncommon, serious side effects exist. These include confusion, seizures, and neurological problems. Severe allergic reactions, such as swelling of the face, lips, or throat, are a medical emergency requiring immediate attention. Seek medical help immediately if you experience any of these symptoms.
This information does not substitute professional medical advice. Always consult your doctor or pharmacist if you have questions or concerns about Aciclovir or experience any side effects.


