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Medications and Drugs

Brand Names: Blistex

Generic Name: allantoin, camphor, and phenol (topical) (Pronunciation: AL an toin, KAM for, FEEN ol TOP i kal)

What is allantoin, camphor, and phenol (Blistex)?

Allantoin is a skin proctant.

Camphor and phenol are mild topical (for the skin) pain relievers.

The combination of allantoin, camphor, and phenol is used to treat pain, itching, or severe lip dryness caused by chapped lips or cold sores (fever blisters).

This medication will not cure herpes simplex, a virus that causes cold sores.

Allantoin, camphor, and phenol may also be used for purposes not listed in this medication guide.

What are the possible side effects of allantoin, camphor, and phenol (Blistex)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication if you have severe burning, stinging, redness, or other irritation after applying the ointment.

Less serious side effects are more likely, and you may have none at all. Mild tingling or a cool feeling are normal when applying menthol or camphor to the skin.

The ointment may leave a white residue on your lips.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about allantoin, camphor, and phenol (Blistex)?

You should not use this medication if you are allergic to allantoin, camphor, or phenol, or to any of the other ingredients of the ointment, including menthol, bees wax, glycerin, lanolin, mineral oil, and paraffin.

Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.

Do not apply this medication over large surfaces of your skin, or cover treated skin with a bandage or other covering.

It is best not to apply this medication more than 4 times daily.

This medication will not cure herpes simplex, a virus that causes cold sores.

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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