Capsaicin is believed to act on a substance in the body which is involved in transmission of pain impulses, known as Substance P.
It is believed that regular application of capsaicin (Zostrix) to the affected area will in time reduce the amount of Substance P in nearby nerve endings. With less of Substance P present, pain may be less intense and in some cases there may be a cessation of pain.
Zostrix cream contains capsaicin 0.025% w/w and is supplied in tubes of 45g.
May be useful as an adjunct in the temporary relief of pain associated with arthritis. May be useful for the treatment of post-herpetic neuralgia (pain following shingles).
For external use only:
Avoid contact with eyes and broken or irritated skin. If condition worsens, or if symptoms persist for more than 28 days in the case of arthritis (14 days with post-herpetic neuralgia) or clear up and occur again within a few
days, discontinue use of this product and consult your doctor. Keep out of the reach of children.
Adults and children 2 years of age and older:
Apply Zostrix to affected area 3 to 4 times daily. Zostrix may cause temporary burning when applied.
This burning is observed more frequently if Zostrix is used less than 3 times a day. Unless treating hands, wash hands thoroughly with soap and water after application. If Zostrix is found to irritate fingers, a disposable glove
or finger cot may be used for Zostrix application.
After rubbing in Zostrix as completely as possible, any excess cream may be gently removed with a disposable