DRUG ADMINISTRATION COMPOSITION FOR IONTOPHORESIS

摘要

A drug administration composition which is adapted for use in iontophoresis comprises a drug to be ionized and a humectant. The humectant is made, for example, of an amide with or without a co-humectant such as an amino acid or its derivative. The composition is effective in suppressing evaporation of moisture from a drug solution, keeping the electric conductivity over a long time, and transdermal administration of a drug through iontophoresis.