Active ingredients: Docosanol

Product name and form

Blistex Cold Sore Cream (GSL).

Pharmaceutical Form


White cream.

Qualitative and quantitative composition

Each gram of cream contains 100 mg of docosanol.

Excipient: 50 mg propylene glycol/gram cream.

For a full list of excipients, see section 6.1.

Active Ingredient

The exact mechanism of the antiviral activity of docosanol is unknown. In vitro studies indicate that docosanol affects the fusion between the virus and the plasma membrane, which inhibits intracellular uptake and replication of virus. Docosanol has no effect against non-enveloped viruses.

List of Excipients

Sucrose stearates (mono and distearate)
Light mineral oil
Propylene glycol (E1520)
Benzyl alcohol (E1519)
Purified water

Pack sizes and marketing

Epoxy-lined aluminium tubes closed with a polyethylene screw cap.

Pack size: 2 g

Marketing authorization holder

DDD Limited, 94 Rickmansworth Road, Watford, Hertfordshire, WD18 7JJ

Marketing authorization dates and numbers

PL 00133/0236