Synonyms: Pregna-1,4-diene-3,20-dione,6a-fluoro-11b,16a,17,21-tetrahydroxy-, cyclic 16,17-acetal with acetone(7CI,8CI); 2H-Naphth[2',1':4,5]indeno[1,2-d][1,3]dioxole,pregna-1,4-diene-3,20-dione deriv.; 6a-Fluoro-11b,21-dihydroxy-16a,17a-(isopropylidenedioxy)pregna-1,4-diene-3,20-dione;Aerobid; Aerobid M; Bronalide; Flunisolide; Lunis; Nasalide; Nasarel; Nisolid;RS 3999; Rhinalar; Soluzione; Synaclyn; Syntaris