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PENCICLOVIR (pen SYE kloe veer) is an antiviral medicine. It is used to treat infections caused by certain kinds of viruses. Examples of these infections include cold sores and herpes. This medicine will not cure herpes.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
They need to know if you have any of these conditions:
suppressed immune function
an unusual or allergic reaction to penciclovir, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
This medicine is only for external use on the lips or face. Do not use in the eye or inside the mouth. If you do get this medicine in your eyes, rinse out with plenty of cool tap water. Follow the directions on the prescription label. Wash your hands before and after use. Apply a thin layer of cream to cover all sores or blisters. Begin applying at the first sign of blisters or as soon as you have symptoms. Apply every 2 hours while you are awake or as instructed by your doctor or health care professional. Do not use your medicine more often than directed. Finish the full course prescribed by your doctor or health care professional.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
If you miss a dose, use it as soon as you can. If it is almost time for your next dose, use only that dose. Do not use double or extra doses.
Interactions are not expected. Do not use any other skin products on the affected area without telling your doctor or health care professional.
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
Even though you are using this medicine, you can still spread the herpes infection to another person. Try to keep the sores (blisters) from making contact with another person's skin.
This medicine works best when applied very early in the course of an infection. Begin treatment at the first sign of infection. These signs include tingling, itching, or pain in the affected area.
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
altered taste sensation
dulled sensitivity to touch
skin irritation or itching
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Keep out of the reach of children.
Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Do not freeze. Throw away any unused medicine after the expiration date.
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