Topical steroids for shingles


Topical Therapy

    • general points and common ingredients
    • topical steroids
    • common types of topical formulations
    • factors to consider when choosing a topical preparation
  • Deliver drug to target site in the skin by topical application, thus minimizes systemic side effects
  • Mainstay of dermatologic therapy
 What are the common ingredients in a topical formulation?
  1. Active drug(s)
  2. Vehicle (cream, ointment, lotion etc.)
  3. +/- preservatives
  4. +/- penetration enhancers (. azone, DMSO)
  5. Others (. antioxidants, fragrances, coloring/flavouring agents)
 

Transdermal patches can be a very precise time released method of delivering a drug. Cutting a patch in half might affect the dose delivered. The release of the active component from a transdermal delivery system (patch) may be controlled by diffusion through the adhesive which covers the whole patch, by diffusion through a membrane which may only have adhesive on the patch rim or drug release may be controlled by release from a polymer matrix. Cutting a patch might cause rapid dehydration of the base of the medicine and affect the rate of diffusion.

Topical steroids for shingles

topical steroids for shingles

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