Skip to Content

← See all Cold Sore Treatment brands

Cold Sore Treatment by Amerisource Bergen

Medically reviewed by Last updated on March 12, 2020.

Dosage form: tincture
Ingredients: Benzalkonium chloride 0.13mL in 1mL
Labeler: Amerisource Bergen
NDC Code: 24385-980

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.


ACTIVE INGREDIENTBenzalkonium chloride, 0.13%

PURPOSECold Sore / Fever Blister Treatment; Topical Antiseptic

  • Treat cold sores / fever blisters
  • Help guard against infection


For external use only. Flammable, keep away from fire or flame.

Do not use
  • in the eyes
  • over large areas of the body
  • if you are allergic to any ingredient in the product
  • more than 3 times per day
  • longer than one week unless directed by a doctor.

Stop use and ask a doctor if
  • condition persists or worsens
  • symptoms persist for more than 7 days

Ask a doctor if
  • used to treat deep or puncture wounds, animal bites, or serious burns
  • you are pregnant or nursing a baby

When using this productyou may feel a brief stinging sensation when applying it. The sting should go away in a short time.

Keep out of reach of children

If swallowed, get medical help or contact a Poison Control Center right away.

DIRECTIONS Adults and children over 2 years of age:
  • Clean the lip area of any lip preparations, lotions, ointments, residual beverages, or cosmetics including lipstick using warm water and a washcloth
  • Remove the cardboard top from applicator and place onto the glass/plastic vial end - opposite the brush end of the product
  • Squeeze the cardboard to break the inner glass vial open
  • Saturate the applicator end with solution by holding the brush end down and squeezing the container until you can see liquid on the brush applicator
  • For best results, massage the solution into the cold sore by rubbing. Rub firmly, but take care not to damage the tissue. The purpose of the rubbing is to deliver the drug to the infection site. Hold the vial so the solution flows to the sore.
  • To treat most cold sores, usually one treatment is enough.
  • If your symptoms go away and then return later, apply another dose.
  • Do not use more than 3 times per day
  • Discard after use.
Children under 2 years of age: ask a doctor.

  • Store at room temperature: 15° - 30° C (59° - 86° F)
  • The ingredients in toothpaste, softdrinks, and some fruit juices can de-activate the active ingredient. For best results, avoid brushing your teeth with toothpaste or drinking soft drinks or fruit juices for one hour after applying.

INACTIVE INGREDIENTSisopropyl alcohol, water


Prior to treatment, clean the area to be treated preferably with a washcloth and warm water. A dry wipe may be sufficient. Do not use soap or other cleansers.


Remove paper cap from vial, exposing applicator tip.
Replace cap on other end of vial, leaving applicator tip exposed.
Firmly pinch center of vial, close to edge of paper cap, until inner ampoule breaks.
Hold with the white applicator tip down, allowing medication to saturate the applicator.
If necessary: pinch vial gently until a drop of medication appears.

Prior to use: Remove vial from package

3. RUB

The key is to rub on the sore and the surrounding area. Gently dabbing is not effective.
Do not rub so hard that you cause damage to the skin.
Keep the applicator saturated at all times. If necessary, pause and hold the vial to allow more medication to flow into the applicator tip.
Use all the medication in the vial.
Dispose of when finished, recap the vial and dispose of immediately. Do not disassemble; keep out of reach of children.

Occasionally an additional treatment may be required. In some people, a lesion may appear to start healing and recur a day or more later. This will require an additional treatment.


Good Neighbor Pharmacy®

NDC 24385-0980-41
Viroxyn®* is recommended by dentists

Viroxyn®* Benzalkonium Chloride 0.13%
Cold Sore

fast relief

Cold Sore / Fever Blister Treatment
and Topical Antiseptic

wFast Pain Relief
wPatented Application without using your fingers
wInstrucciones en espanol incluido

Includes 2 Single Dose Treatment Vials

0.6 mL each

Distributed by Amerisource Bergen
Valley Forge, PA 19482-0959

Visit us at
Made in USA

US Patent No’s 6,211,243B1 and 6,322,243 and 6,410,599 and
6,414,032 and 6,420,431 and 6,423,750 and 6,759,434.

*Viroxyn® is a registered trademark of Quadex Pharmaceuticals, LLC

A patented new approach to treating cold sores - rubbing the cold sore with the applicator tip delivers the germicidal medicine directly to the site of the infection.

Cold Sores and Fever Blisters are both caused by the Herpes Simplex virus (typically HSV-1) and are just different popular names for the HSV-caused lesions.


A well-intentioned kiss can transfer the virus to another individual. Children are highly at risk.

After touching a cold sore:

  •     Wash your hands immediately with warm water and soap
  • Do not touch your eyes
  • Do not touch your genitals or other parts of the body. It is possible to transfer the virus to other parts of the body (autoinoculation)

Occasionally an additional treatment may be required. In some people, a lesion may appear to start healing and recur a day or more later. This will require an additional treatment.

benzalkonium chloride tincture
Product Information
Product TypeHUMAN OTC DRUGItem Code (Source)NDC:24385-980
Route of AdministrationTOPICALDEA Schedule    
Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
Benzalkonium chloride (Benzalkonium) Benzalkonium chloride0.13 mL  in 1 mL
Inactive Ingredients
Ingredient NameStrength
isopropyl alcohol 
#Item CodePackage Description
Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
OTC monograph not finalpart333A06/01/2007
Labeler - Amerisource Bergen (007914906)

Amerisource Bergen

← See all Cold Sore Treatment brands

More about Cold Sore Treatment (benzalkonium chloride topical)

Consumer resources

Other brands: Merthiolate, CureChrome, HandClens 2 in 1, Neosporin Wound Cleanser

Professional resources

Related treatment guides