A61K 47/6923

Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit {the form being a particulate, a powder, an adsorbate, a bead or a sphere the form being an inorganic particle, e.g. ceramic particles, silica particles, ferrite or synsorb}