Aciclovir 400 Mg (Acyclovir)

1. What is Aciclovir 400 mg used for?

Aciclovir 400 mg is an antiviral medicine used to treat infections caused by the herpes virus, such as genital herpes, cold sores, shingles (herpes zoster), and chickenpox. It helps reduce the severity and duration of outbreaks.

2. How does Aciclovir 400 mg work?

Aciclovir works by blocking the multiplication of herpes viruses in the body. While it does not eliminate the virus, it helps control symptoms, speed up healing, and lower the risk of future outbreaks.

3. How should I take Aciclovir 400 mg tablets?

1. Swallow the tablet whole with a glass of water.
2. It can be taken with or without food.
3. Drink plenty of fluids to prevent kidney problems.
4. Follow your doctor’s instructions carefully and do not skip doses.

4. What is the usual dosage of Aciclovir 400 mg?

The dosage depends on the type of infection being treated:

• Herpes simplex (treatment): 200–400 mg taken 3–5 times daily
• Genital herpes (prevention): 400 mg twice daily
• Shingles (Herpes zoster): 800 mg 5 times daily (higher dose)
• Chickenpox: Dose adjusted based on age and body weight

Always follow your doctor’s prescription for correct dosage and duration.

5. Can Aciclovir 400 mg cure herpes permanently?

No, Aciclovir does not cure herpes. The virus remains in the body, but the medicine helps control symptoms, reduce the length of outbreaks, and lower the chance of spreading the infection.

6. What are the possible side effects of Aciclovir 400 mg?

Some common side effects may include:

• Nausea or vomiting
• Diarrhea
• Dizziness
• Headache
• Tiredness

Serious but rare side effects may include kidney problems or allergic reactions. Contact your doctor if you experience unusual symptoms.

7. Can I take Aciclovir 400 mg during pregnancy or breastfeeding?

Aciclovir 400 mg should only be used during pregnancy or breastfeeding if prescribed by your doctor. The risks and benefits should be carefully considered before starting treatment.

8. Can Aciclovir 400 mg interact with other medicines?

Yes, Aciclovir may interact with medicines that affect kidney function such as Probenecid, Cimetidine, or other antivirals. Inform your doctor about all prescription and over-the-counter medicines you are taking.

9. What precautions should I follow while taking Aciclovir 400 mg?

1. Drink sufficient water daily to protect kidney function.
2. Take your doses at evenly spaced intervals for maximum effect.
3. Do not share personal items to avoid spreading the virus during outbreaks.
4. Store the tablets in a cool, dry place, away from direct sunlight.

10. How long does it take for Aciclovir 400 mg to show results?

Improvement is usually noticeable within 2–3 days for herpes simplex infections. For shingles and chickenpox, it may take up to 7 days for significant relief. Continue treatment for the full prescribed duration to achieve the best results.