Acyclovir Stada 400mg Tablet

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Overview

Acyclovir Stada 400mg Tablet contains aciclovir 400mg, an antiviral medicine used to treat infections caused by herpes simplex virus (such as genital herpes and cold sores) and varicella-zoster virus (chickenpox and shingles).

Aciclovir works by selectively targeting virus-infected cells, stopping the virus from copying its genetic material, which slows the spread of infection and allows the body’s immune system to bring it under control.

How it Works

Aciclovir is converted into its active triphosphate form preferentially inside virus-infected cells by a viral enzyme (thymidine kinase), then incorporated into the growing viral DNA chain by viral DNA polymerase, where it terminates further DNA synthesis. This selectivity for infected cells limits effects on normal, uninfected cells.

Directions for Use

Take Acyclovir Stada 400mg Tablet at evenly spaced intervals through the day as prescribed, with or without food, and drink plenty of water throughout treatment to support kidney function. Start treatment as soon as possible after symptoms appear for the best effect.

Dosage

The usual adult dose of Acyclovir Stada 400mg Tablet varies by condition, typically ranging from 200mg five times daily for herpes simplex to 800mg five times daily for shingles, as determined by your doctor based on the infection being treated and your kidney function.

Shelf Life

Use this product before the expiry date stated on the packaging. Do not use the medicine if the expiry date has passed.

Storage Instructions

Store below 30°C in a dry place, away from direct sunlight and out of reach of children.

Side Effects

  • Nausea or vomiting
  • Headache
  • Dizziness
  • Diarrhoea
  • Joint or muscle pain
  • Fatigue or tiredness
  • Mild rash or skin reaction

Contraindications

  • Known hypersensitivity to aciclovir or valaciclovir
  • Existing kidney impairment (requires dose adjustment by your doctor)

Drug / Food Interactions

  • Probenecid can increase aciclovir blood levels by reducing its elimination
  • Other nephrotoxic medicines increase the risk of kidney impairment when combined with aciclovir
  • Mycophenolate mofetil (used in transplant patients) may have increased blood levels of both medicines when combined
  • Inform your doctor of all medicines you are taking, especially if you have any kidney condition

Quick Tips

  • Start taking this medicine as soon as possible after symptoms begin, for the best effect
  • Drink plenty of water throughout your course of treatment
  • Complete the full course even if your symptoms improve before it is finished
  • Avoid touching active sores and wash your hands frequently to reduce the spread of infection to others

Frequently Asked Questions

What is Acyclovir Stada 400mg Tablet used for?

Acyclovir Stada 400mg Tablet is an antiviral used to treat infections caused by herpes simplex virus (such as genital herpes and cold sores) and varicella-zoster virus (chickenpox and shingles).

How quickly should I start taking this medicine after symptoms appear?

Aciclovir works best when started as early as possible after symptoms begin, ideally within 24-72 hours for shingles or at the first sign of a cold sore or genital herpes outbreak.

Can this medicine cure herpes infections completely?

No, aciclovir does not cure herpes virus infections, as the virus remains dormant in the body between outbreaks. It reduces the severity and duration of active outbreaks and can be used to reduce the frequency of recurrences in some cases.

Why do I need to drink plenty of water while taking this medicine?

Staying well hydrated helps your kidneys process and eliminate aciclovir properly, reducing the risk of kidney-related side effects, especially at higher doses.

What should I do if I miss a dose of Acyclovir Stada 400mg Tablet?

Take the missed dose as soon as you remember, unless it is almost time for your next dose – in that case, skip the missed dose and continue your regular schedule. Do not double the dose.

Can I buy Acyclovir Stada 400mg Tablet from DoctorOnCall?

Yes, Acyclovir Stada 400mg Tablet is available through DoctorOnCall, a licensed online pharmacy serving our Malaysian and Singaporean customers. As this is a prescription medicine, you will need to complete an online consultation so a doctor can assess your suitability and issue a valid prescription before the order is processed. This ensures the medicine is appropriate for your condition and used under proper medical supervision, whether you are ordering from Malaysia or Singapore.

Is the medication provided by DoctorOnCall genuine and safe to use?

DoctorOnCall sources its medicines through appropriate licensed pharmacy supply channels for our Malaysian and Singaporean customers. All orders are dispensed and checked by a registered pharmacist before delivery. Always use Acyclovir Stada 400mg Tablet according to your doctor’s instructions and the information provided with the product.

What payment methods does DoctorOnCall accept?

We accept payment via Online Banking, Credit Card, and e-Wallets (Boost, GrabPay) for our Malaysian and Singaporean customers, so you can choose whichever method is most convenient for you at checkout.

Does DoctorOnCall provide an installment payment plan for Acyclovir Stada 400mg Tablet?

DoctorOnCall provides an installment payment plan for eligible Malaysian and Singaporean customers, where applicable. Available plans, eligibility, and terms can vary by market, so please contact DoctorOnCall Customer Service for the latest information on installment options for your order.

Is delivery free, and how much does shipping for Acyclovir Stada 400mg Tablet cost?

Delivery charges may vary for our Malaysian and Singaporean customers depending on your delivery location and the applicable order terms at the time of purchase. For the most accurate and up-to-date delivery fee information, please contact DoctorOnCall Customer Service before placing your order.

How long does delivery take for Acyclovir Stada 400mg Tablet?

Our Malaysian customers can generally expect delivery within 3-5 working days, while our Singaporean customers generally receive their orders within 5-7 working days. These are expected timeframes rather than guarantees, and actual delivery time may vary depending on your delivery location, order processing time, courier operations, and whether the order falls on a weekend or public holiday.

What is DoctorOnCall’s shipping, return, or cancellation policy for Acyclovir Stada 400mg Tablet?

Shipping, return, and cancellation terms may vary for our Malaysian and Singaporean customers depending on the product and your order details. Please refer to DoctorOnCall’s Shipping & Delivery Policy and Return, Refund & Exchange Policy, or contact Customer Service, for the specific terms that apply to your order.

Ingredients / Active Ingredients

  • Aciclovir 400mg

Safety Advice

Pregnancy

Safe If Prescribed

This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.

Breastfeeding

Use With Care

Use with caution. Monitor infant for potential adverse reactions.

Kidney

Use With Care

Use cautiously. Dose adjustment or monitoring may be required.

Liver

Use With Care

Use cautiously. Liver function monitoring may be required.

Alcohol

Generally Safe

Consuming alcohol with this medicine is generally safe, but moderate intake is advised.

Driving

Use With Care

Use caution while driving until you know how this medicine affects you.

Medical Review

Written by:

Dr. Chong Zhan Pong

Doctor of Medicine (MD), International Medical University (IMU)

Reviewed by:

Dr. Mohd Izzat Amir Bin Awang

Doctor of Medicine (MD), University of Mansoura - Manchester

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Important Medical Information

💊 Recommended Dosage:

The usual adult dose of Acyclovir Stada 400mg Tablet varies by condition, typically ranging from 200mg five times daily for herpes simplex to 800mg five times daily for shingles, as determined by your doctor based on the infection being treated and your kidney function.

🛑 Contraindications (Do not use if):
  • Known hypersensitivity to aciclovir or valaciclovir
  • Existing kidney impairment (requires dose adjustment by your doctor)
If you are unsure, please chat with us or consult your doctor.
⚠️ Common Side Effects:
  • Nausea or vomiting
  • Headache
  • Dizziness
  • Diarrhoea
  • Joint or muscle pain
  • Fatigue or tiredness
  • Mild rash or skin reaction
Stop taking this medication immediately and consult your doctor if you experience severe allergic reactions or side effects.
IMPORTANT: Unsure? Chat with our pharmacists (Mon - Sat, 9:00am - 6:00pm) before buying.