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Penciclovir is used on the lips and faces of adults to treat cold sores caused by herpes simplex virus. Penciclovir does not cure herpes infections, but rather, it decreases pain and itching if applied when the earliest symptoms first appear.

Item Name Quantity Consultation Request This Medication
Denavir (Pencyclovir 1%) 1.5 gm 4 tubes Included Click Here


Why is this medication prescribed?

Penciclovir is used on the lips and faces of adults to treat cold sores caused by herpes simplex virus. Penciclovir does not cure herpes infections but decreases pain and itching if applied when the earliest symptoms first appear.

Denavir is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

How should I use Denavir?
Use penciclovir topical exactly as directed by your doctor. If you do not understand these directions, ask your doctor, nurse, or pharmacist to give you more information.
Penciclovir topical should be applied to cold sore lesions every 2 hours while awake for a period of four days, unless otherwise suggested by your treatment provider.
Denavir should be used to treat cold sores on the lips and facial area only. Avoid use on other parts of the body.
For best results, treatment with penciclovir topical should begin as quickly as possible after symptoms appear.
Do not apply penciclovir topical to the inside of the nose or in close proximity of the eyes, as it may cause irritation.
Store Denavir at room temperature away from moisture and heat.

Continue to use penciclovir even if you feel well. The cessation of penciclovir is not recommended without talking to your doctor first.

Are there any special precautions I should follow?

Before using penciclovir,

  • tell your doctor and pharmacist if you are allergic to penciclovir, acyclovir (Zovirax), or any other drugs.
  • tell your doctor and pharmacist what prescription and nonprescription medications you are taking, including vitamins and supplements, as these may have an effect on the prescribed medication.
  • tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking penciclovir, call your doctor.
What do I do if I forget to take a does of Denavir?

Apply the missed dose as soon as you remember it and apply any remaining doses for that day at evenly spaced intervals. However, if it is nearing the time for next dose, skip the missed dose and continue your regular dosing schedule. Do not double dose to make up for a missed one.

What side effects can this medication cause?

Although side effects from penciclovir are not common, they can occur. Tell your doctor if any of these symptoms are severe or do not go away:

  • headache
  • irritation at the site of application
What storage conditions are needed for this medicine?

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Dispose of any medication that is outdated or no longer in use. Talk to your pharmacist about the proper disposal of your medication.

What other information should I know?

Keep all appointments with your doctor. Denavir should only be used on the lips and face. Avoid getting it in your eyes. Keep the infected area clean and dry.

Do not let anyone else use your medication. Ask your pharmacist any questions you have about refilling your prescription. If you still have symptoms of infection after you finish the penciclovir, call your doctor.

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