The formation of well defined supramolecular structures is quite common in pharmaceutical technology and biopharmaceutics. The aim of the formation of such structures between drug and additives is the improvement of drug pharmacokinetics or drug stability. Molecular recognition, reactivity/catalysis and transport processes are basic aspects of supramolecular chemistry. All these three functions can be exerted by cyclodextrins as host molecules for the formation of pharmaceutically interesting supermolecules. Keywords : supramolecular systems, pharmaceutical technology, biopharmaceutics, cyclodextrin inclusion compounds