Your doctor will determine the appropriate acyclovir dosage based on your condition and overall health. Typical oral dosages range from 200mg to 800mg five times daily for herpes simplex virus (HSV) infections. For shingles (herpes zoster), higher doses are common. Always follow prescribed instructions precisely.
Side Effects
Common side effects include nausea, vomiting, and diarrhea. Headache and dizziness may also occur. Less frequently, you might experience rash or hair loss. Severe reactions are rare but include kidney problems. Report any unusual symptoms to your physician immediately.
Drug Interactions
Acyclovir can interact with other medications, particularly nephrotoxic drugs (damaging to the kidneys). Inform your doctor about all medications, including over-the-counter drugs and supplements, you are currently taking to prevent potential complications. Probenecid can increase acyclovir levels in the blood, potentially leading to increased side effects.
Important Note:
This information is for general knowledge only and does not substitute professional medical advice. Always consult your doctor or pharmacist before starting any medication, including acyclovir. They can assess your specific needs and provide personalized guidance.


