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It contains the same ingredient, plus pain relief and anti-biotics!

Herpid (idoxuridine) is an antiviral medication in a liquid solution used to treat skin infections caused by certain types of viruses, such as herpes zoster, which may cause recurrent outbreaks.

Herpid is not a cure for herpes or any other viral infection.

Who Uses Herpid?

Herpid is prescribed to manage the symptoms of viral infections on the skin, such as cold sores resulting from herpes zoster.

The particular infections Herpid is effective against typically produce recurrent outbreaks, or episodes, in which symptoms will disappear only to resurface once again weeks or months later.

Viral infections on the skin are often painful, irritating and embarrassing. Herpid can significantly reduce the symptoms, such as redness, pain, tingling, or itching, as well as reduce the duration of an outbreak.

Herpid is effective against:

  • Adenovirus
  • Cytomegalovirus
  • Herpes simplex
  • Herpes zoster
  • Vaccinia
  • Varicella zoster
How Does it Work?

The active ingredient in Herpid, idoxuridine, interacts with the DNA of certain types of viruses when it comes into contact with them. The interaction disrupts the ability of the virus to replicate itself, inhibiting the spread of the virus and worsening of symptoms.

The solvent dimethyl sulfoxide allows the medication to be easily absorbed into deeper layers of the skin where most viral replication takes place.

How is it Taken?

Physician instructions may vary, but usually the solution is applied sparingly to the affected area as soon as symptoms of an episode are noticed. The product may not be as effective if it is not applied within the first three days of symptoms appearing.

The product comes with a brush applicator. A q-tip or other sterile applicator may be used if preferred.

Herpid is quickly metabolized by the body and excreted in urine, so it is usually applied three or four times a day. It may need to be reapplied after showering or swimming.

Treatment should not continue for more than four days in a row on the same area without explicit physician instructions. Skin damage may occur if overused.

Herpid should be stored at room temperature. If it becomes cool, crystals may form in the solution. If this happens it can be warmed by holding the bottle in the hands until crystals are dissolved. Once free of crystals, shake gently before use. Do not microwave or otherwise heat the product.


Active ingredient: idoxuridine

Inactive ingredient: dimethyl sulfoxide

Patients with known hypersensitivity to any of the ingredients in Herpid should not take this product.

Adverse Effects:

Used properly Herpid has very few side effects. Some patients notice stinging or an odd taste in the mouth when applying Herpid, but these effects are usually mild and quickly pass.

A few patients experience skin irritation at the site of application. If this happens a physician should be consulted before use continues.

If Herpid gets in the eyes, rinse immediately with cool water for 15 minutes. If pain persists, or any other symptoms are present such as swelling, seek emergency medical attention.

Herpid may not be as effective if it comes in contact with other skin products, such as makeup, lotion, or other topical solutions.

Herpid may damage fabrics. To prevent this do not allow fabrics to contact the treated area until the solution has dried completely.

Contraindications and Interactions:

Herpid should not be used by pregnant women. Speak with a physician before using if nursing. This product should not be used on children under 12 years of age without explicit physician instructions.

Patients should read the information provided with the medication for a complete list of possible adverse effects and interactions prior to taking this or any other medication.


0.05 idoxuridine  Buy Herpid 5ml Paint - $21.54
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Medicines have benefits and some have risks. Always read the label and use only as directed. If symptoms persist or you have side effects see your health professional.

Herpid Reviews

  • 2017-02-27 14:26:40 EST
    i used this product in the UK in the 1980s and am glad to hear its avialable online. It works great alleviating cold sores.
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