WDepot injection
WDermis
WEnema
WEnteral administration
WGastrointestinal tract
WIntramuscular injection
WIntraosseous infusion
WIntrathecal administration
WIntravaginal administration
WIntubation
WNasal administration
WOphthalmic drug administration
WOral administration
WRectal administration
WRespiratory tract
WRoute of administration
WSubcutaneous injection
WTopical drug delivery system
WTopical medication
WTransdermal patch
WTransdermal
WY-Set (intravenous therapy)