Aciclovir 400mg tablets
Cold Sores

Aciclovir 400mg Tablets

£18.00

Aciclovir 400mg antiviral tablets for cold sores. Take one tablet three times a day for 5 days. Start at the first sign of symptoms. £18 for 15 tablets. Pharmacist review required.

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  • Pharmacist clinical review before supply
  • UK pricing shown by pack size
  • Discreet delivery options available
SKU: PPC-ACV-400 Category: Tags: , , ,

Introduction

About aciclovir 400mg tablets

Aciclovir is an antiviral medicine used for infections caused by the herpes simplex virus (HSV), including cold sores. It works by disrupting viral replication inside host cells, which helps reduce viral load and ease the intensity of symptoms.

Take one 400mg tablet three times a day for 5 days (15 tablets). Start as soon as you first notice symptoms. A clinician reviews your consultation before any supply.

  • 15 tablets — £18

Benefits

Why people consider aciclovir tablets

An oral antiviral course can help shorten or ease a cold sore outbreak when started early and a clinician confirms it is suitable.

  • Targets HSV replication

    Disrupts viral replication to help reduce viral load and symptom intensity.

  • Short 5-day course

    One 400mg tablet three times a day for 5 days.

  • Best started early

    Take as soon as tingling or other early symptoms begin.

  • Clear private price

    £18 for 15 tablets after clinical approval.

Eligibility

Who aciclovir tablets may be for

Oral aciclovir can help some people with cold sores. A clinician checks your history, kidney function where relevant, and other medicines first.

May be suitable if

  • You have cold sore symptoms and oral antiviral treatment is considered appropriate
  • You can take one tablet three times a day for 5 days, starting at the first sign of symptoms
  • You will read the patient information leaflet and seek GP advice if there is no improvement within 10 days
  • You have answered the consultation questions truthfully

May not be suitable if

  • You are allergic to aciclovir, valaciclovir or any tablet ingredient
  • You have significant kidney problems unless a clinician has adjusted advice accordingly
  • You are pregnant, trying to conceive, or breastfeeding unless a clinician specifically advises otherwise
  • You need urgent face-to-face care for severe, spreading, or eye-involving lesions

A clinician decides whether treatment is appropriate. Completing a consultation does not guarantee a prescription.

How it works

How aciclovir works

Aciclovir is an antiviral that interrupts HSV replication inside host cells. Lower viral load can mean milder symptoms. How quickly you improve varies between people.

  1. Online consultation

    Tell us about your cold sore symptoms, how often outbreaks occur, when they started, and any other medicines or allergies.

  2. Clinical review

    A UK-registered clinician checks whether an antiviral option is appropriate and safe for you.

  3. If suitable, we dispense

    Approved treatment is dispensed by our pharmacy and delivered discreetly, with clear directions for use.

  4. Start early

    Antivirals work best when started as soon as the first tingling or symptoms appear. Follow the leaflet exactly.

Using treatment

How to take aciclovir 400mg tablets

Take one 400mg tablet three times a day for 5 days. Start as soon as symptoms begin. If there is no improvement within 10 days, speak to your GP.

  1. Start at the first sign

    Begin treatment as soon as you notice tingling, itching or early cold sore symptoms.

  2. Take one tablet three times a day

    Swallow one 400mg tablet three times daily for 5 days, with water if needed.

  3. Complete the course

    Finish all 15 tablets unless a clinician tells you to stop.

  4. Follow up if needed

    If symptoms are no better within 10 days, contact your GP.

Safety

Safety information

Drink enough fluids during treatment unless advised otherwise. Tell us about kidney problems and all other medicines.

Cold sores are contagious — avoid kissing, sharing towels or lip products, and touching the sore then other people or your eyes.

  • Take one 400mg tablet three times a day for 5 days.
  • Start as soon as symptoms begin.
  • Read the patient information leaflet before first use.
  • I agree to take the medication as prescribed and have answered consultation questions truthfully.

Side effects

Possible side effects

Possible side effects include headache, fatigue, dizziness, nausea or vomiting, diarrhoea, abdominal pain, itchy rash and fever.

  • Headache, fatigue or dizziness Common. Rest if needed and take care if you feel dizzy. Seek advice if symptoms are severe.
  • Nausea, vomiting, diarrhoea or abdominal pain Tummy side effects can occur. Seek advice if they are severe or do not settle.
  • Itchy rash or fever Stop and seek medical advice if you develop a rash, fever or signs of allergy.

Always read the aciclovir 400mg patient information leaflet. This page is general information for UK patients and is not a substitute for personalised clinical advice.

Common questions

Aciclovir 400mg FAQs

Common questions about this oral antiviral for cold sores. A clinician still decides what is right for you.

What is aciclovir?

Aciclovir is an antiviral medicine used for HSV infections such as cold sores. It disrupts viral replication to help reduce viral load and ease symptoms.

How do I take aciclovir 400mg tablets?

Take one tablet three times a day for 5 days. Start as soon as you first get symptoms.

How quickly will it work?

This varies from person to person. If there is no improvement within 10 days, speak to your GP.

How much does it cost?

The current private guide price is £18 for 15 tablets. You only pay if treatment is approved.

Will I definitely get this medicine?

No. Supply depends on eligibility, safety and clinical judgement. Completing a consultation does not guarantee a prescription.

How is delivery handled?

If a prescription is issued, our pharmacy dispenses the medicine and sends it to your UK address in plain packaging. You receive tracking details once the order has been dispatched.

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  2. Checkout

    Select your preferred treatment, so our prescribing pharmacists can assess if it's right for you

  3. Express Delivery

    If approved by our prescribing pharmacists, the pharmacy team will dispense and deliver your medication

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Patients value clear guidance, discreet support, and a calm online process from request through to pharmacist review.

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