| abstract |
A prolonged-action pharmaceutical preparation comprising a macrocyclic compound represented by 17-alkyl-1,14-dihydroxy-12-[2-(4-hydroxy-3-methoxycyclohexyl)-1-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04.9]octa-cos-18-ene-2,3,10,16-tetrone or 17-ethyl-1,14-dihydroxy-12-[2-(4-hydroxy-3-methoxycyclohexyl)-1-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04.9]octa-cos-18-ene-2,3,10,16-tetrone enclosed in a so-called microsphere, i.e., a fine particle of a biodegradable macromolecular substance. When this preparation is administered in the form of a parenteral solution, the macrocyclic compound can very well migrate in the blood. Further it is suited for topical administration. |