Serum levels of benzydamine following the topical use of this drug in gynecology.

The serum levels of benzydamine were studied after administration by vaginal douching (at a concentration of 0.0%) to patients with and without vaginal inflammation. In both experimental groups benzydamine produced similar serum concentrations which were lower than those obtained by other administration routes, excluding the possibillity of eventual systemic effects. These data are a further confirmation that, whenever possible, topical use is preferable to systemic use in order to reduce the incidence of systemic side effects to a minimum and to obtain a more selective therapy.