Numark Aciclovir Cream 2g

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Aciclovir cream is used in the treatment of cold sores. Once a cold sore has appeared, treatment with Aciclovir cream can accelerate the healing process.

The active substance in Aciclovir cream is Aciclovir. Aciclovir is an antiviral agent that has been shown to be effective in treating infections caused by the herpes simplex virus, such as cold sores.


Do not use Aciclovir cream and tell your doctor:

  • If you are allergic (hypersensitive) to aciclovir or any of the other ingredients of Aciclovir cream (listed in section 6, Further Information). Cetyl alcohol, propylene glycol or sorbic acid may cause local skin reactions or irritation (e.g. contact dermatitis).
  • In the eyes, inside the mouth or genitals.

Check with your doctor or pharmacist before using Aciclovir cream if your immune system is not working properly (for instance you have had a bone marrow transplant or you have AIDS).

Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including medicines obtained without a prescription.

This is especially important if you are taking Probenecid (used for gout).

As with all medicines, Aciclovir cream should not be used during pregnancy or breast-feeding, unless you are advised to do so by your doctor.

Ask your doctor or pharmacist for advice before taking any medicine.

Like all medicines, Aciclovir cream can cause side effects, although not everybody gets them.

Some people may experience side effects, particularly when they first start using the product.

These side effects may include a burning or stinging where the cream has been applied, mild drying or flaking of the skin, redness of the skin and itching.

If you get a skin rash you may be allergic to the cream. Stop using it and tell your doctor immediately.


It is important to start treatment as soon as possible. Always use Aciclovir cream exactly as your doctor has told you. You should check with your doctor or pharmacist if you are unsure how to use this medicine.

Adults and the elderly:

  • Wash your hands before and after applying the cream. This will prevent your cold sore from getting worse or spreading, or you infecting someone else.
  • Apply the cream to the affected area 5 times daily (about every four hours) for 5 days.
  • If your cold sore has not healed after five days of treatment you can continue using the cream for another five days.

If you forget to apply the cream, apply it as soon as you remember and then apply the next treatment at the usual time.

If you accidentally swallow Aciclovir cream:

Aciclovir cream is for use on cold sores on the lips and surrounding skin. You are very unlikely to suffer any bad effects if you accidentally swallow Aciclovir cream. However, if you notice any unusual effects or are worried tell your doctor or contact the Accident and Emergency Department of your nearest hospital.


Active ingredient: Aciclovir 5% w/w.

Also contains: Stearoyl Macrogolglycerides, Dimeticone, Cetyl Alcohol, Liquid Paraffin, White Soft Paraffin, Propylene Glycol and Purified Water.