NCIt definition : A foam composed of active and/or inert ingredient(s), intended for administration
in or around the vagina.;
Alternative definition : EDQM-HC: Liquid preparation, usually presented in a pressurised container provided
with an applicator suitable for delivery to the vagina of foam containing large volumes
of gas dispersed in a liquid containing active substance(s). Vaginal foams are intended
for vaginal use, for example for contraception.;