Aciclovir generally has a good safety profile, but some people experience side effects. These are usually mild and temporary.
Common Side Effects
- Headache Nausea Diarrhea Vomiting Fatigue
These usually resolve without treatment. If they persist or worsen, contact your doctor.
Less Common but Important Side Effects
- Dizziness Rash Itching Kidney problems (rare, but more likely with high doses or kidney issues)
A rash requires immediate medical attention, as it can signal a serious allergic reaction. If you have existing kidney problems, discuss dosage with your doctor before starting aciclovir.
Precautions
Inform your doctor about all medications you are taking, including over-the-counter drugs and herbal supplements. Some medications may interact with aciclovir. Pregnancy and breastfeeding: Talk to your doctor about the risks and benefits of using aciclovir during pregnancy or breastfeeding. Dehydration: Drink plenty of fluids, especially water, while taking aciclovir to help your kidneys function properly and reduce the risk of kidney problems. Follow prescribed dosage: Do not take more or less than prescribed. Allergic Reaction: Stop taking aciclovir and seek immediate medical help if you experience symptoms of a serious allergic reaction, such as difficulty breathing, swelling of the face, lips, or tongue, or severe skin rash.
This information is not a substitute for professional medical advice. Always consult your doctor or pharmacist for personalized guidance.
