Aciclovir Cold Sores Treatment - 200mg Tablets

Based on 9 reviews

Available as a 25 pack

  • Treats cold sores caused by the herpes simplex virus 
  • Contains the active ingredient aciclovir, an antiviral medicine
  • Tablets can either be dissolved in water or taken whole with water
Pack Size
Price
200mg
£10.99
This treatment is inclusive of consultation & private prescription
How we are regulated
Our Consultations
Let us explain how it works
select consultation
Step 1
Choose a condition
Select your condition.
complete detail
Step 2
Complete a consultation
Answer some health-related questions so our pharmacists can determine the right treatment for you.
suggested treatment
Step 3
Choose a treatment
We’ll provide you with treatment options to treat your condition.
fast delivery
Step 4
Fast and discreet delivery
We’ll issue your prescription and treatment in one cost and deliver it fast and discreetly to your door.
Alexandra Moses - Medical Content Writer
Alexandra Moses
Medical Content Writer
05/06/2023
04/06/2025
James O'Loan - CEO & Superintendent Pharmacist
James O'Loan
CEO & Superintendent Pharmacist
2084549
05/06/2023

Buy Aciclovir Tablets

Aciclovir Tablets are an antiviral medication used to treat cold sores, which are small, fluid-filled blisters that are often grouped together. They appear on or around your lips due to the herpes simplex virus.

These tablets contain 200mg of the active ingredient aciclovir, an antiviral medicine that works by killing or stopping the growth of viruses, like the herpes simplex virus.

 

Directions

Always take these tablets exactly as described in the patient information leaflet or as your doctor / Chemist4U pharmacist has told you. To take these tablets, you can either dissolve the tablet in a glass of water, stirring before drinking. Or, the tablet can be swallowed whole with water.

To treat cold sores, the usual dosage is one 200mg tablet taken 5 times per day. You should space your doses out by at least 4 hours. The suggested times are: 7am, 11am, 3pm, 7pm and 11pm. You should take these tablets for 5 days, longer, only if your doctor or Chemist4U pharmacist tells you to.

 

Side effects

Like all medicines, Aciclovir Tablets may cause side effects in some people, but these won’t affect everybody. Common side effects include: 

 

  • Headache
  • Feeling dizzy
  • Feeling or being sick
  • Diarrhoea
  • Stomach pains
  • Rash
  • Skin reaction after exposure to light (photosensitivity)
  • Itching
  • Fatigue
  • Unexplained fever
  • Feeling faint, especially when standing up

 

For more information on potential side effects, refer to the patient information leaflet. If you experience any side effects, including any not included in the patient information leaflet, you can report them using the MHRA Yellow Card Scheme.

 

Serious side effects

Seek emergency medical attention if you notice any signs of a severe allergic reaction, symptoms of which include swelling of the face and throat, skin rash, breathing difficulties and/or loss of consciousness.

 

Warnings

Aciclovir Tablets may be unsuitable for certain people. Do not take these tablets if you have ever had an allergic reaction to valaciclovir or aciclovir. 

Talk to your doctor or Chemist4U pharmacist before taking this medicine if you have kidney problems or you’re over 65 years of age. Care should be taken to ensure you remain hydrated as Aciclovir Tablets can be harsh on the kidneys.

 

Using/taking other medicines

You must tell your doctor or Chemist4U pharmacist if you’re taking or using any other medicines before you take Aciclovir Tablets. This is especially important if you’re taking:

 

  • Probenecid (used to treat gout)
  • Cimetidine (used to treat stomach ulcers)
  • Mycophenolate mofetil (used to stop your body rejecting transplanted organs)

 

Age restrictions 

This medicine is potentially suitable to treat cold sores in children, if recommended by a healthcare professional. However, we are only able to prescribe Aciclovir Tablets to those aged 18 and over from our clinic.

 

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, you must ask your doctor or Chemist4U pharmacist for advice before taking any new medicine. 

 

Driving and operating machinery 

Aciclovir Tablets can make some people feel drowsy, dizzy and faint, which may impair your ability to concentrate and react. Therefore, do not drive or operate machinery until you know how this medicine affects you.

 

Storage information

Store in a cool, dry place out of sight and reach of children. Do not use after the expiry date, referring to the last day of the month stated on the packaging. Do not throw away any medicines via wastewater or household waste.

 

Important information

This product is a medicine; make sure to speak to your doctor or Chemist4U pharmacist before taking this product if you have an underlying medical problem or are taking any other medicine or complementary therapy. If your symptoms get worse or continue after taking this product, contact us or your doctor. For medical services in your area, please refer to https://www.nhs.uk

If you are pregnant, trying to become pregnant, or breastfeeding, speak to your doctor or our pharmacist before taking this product. If you suffer from any allergies, ask your doctor or our pharmacist if this medicine is right for you.

Store all medicines out of sight and reach of children.

Please read the included leaflet carefully before using this product.

Please contact your GP if appropriate regarding this product.

Find similar products

Aciclovir Cold Sores Treatment - 200mg Tablets Reviews

white-star white-star white-star white-star white-star
By .Tracey K,
July 16, 2025
Started working straightaway on my cold sores. Brilliant
white-star white-star white-star white-star white-star
By John Martin,
June 24, 2025
Nothing works faster
white-star white-star white-star white-star white-star
By Naira Sadzeviciene,
May 06, 2025
Acju223#€&
white-star white-star white-star white-star white-star
By Richard Goold,
March 11, 2025
Good product and works effectively.
white-star white-star white-star white-star white-star
By Agnieszka J,
February 11, 2025
Very good medication! Symptoms go away within 5 days , and condition goes into remission. It did help me for sure. I will order again should I need it in the future.
© 2025 Chemist4U. Innox Trading Ltd, 1 Penketh Place, Skelmersdale, Lancashire, WN8 9QX, GB. All rights reserved. Registered and regulated UK pharmacy with the GPhC (registered premises 9011784). Registered in England No. 07262043 | VAT Registration No. GB140138454