[Drug liberation from dermatica (author's transl)].

Investigated 0,1% ointments based on oleogels, hydrogels and O/W creams show differences by in-vitro evaluation of dexamethasone sodiumphosphate and dexamethasone release, which we have evaluated concerning the vehicle composition and its viscosity, the internal structure of systems and the drug properties. The results show dependence of drug availability on the vehicle gel structure order on the one, and on the drug activity on the other hand. The presence of a hydrocolloid (Eudispert-Na) in O/W creams improves the drug release.

Keywords

Excipients, Ointments, Ointment Bases, Viscosity, Chemistry, Pharmaceutical, Colloids, Gels, Dexamethasone

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