<unk> , also known as 11β,21-dihydroxy-16α,17α-(butylidenebis(oxy))pregna-1,4-diene-3,20-dione, is a synthetic pregnane steroid and non-halogenated cyclic ketal corticosteroid. It is the C16α hydroxyl, C16α,17α cyclic ketal with butyraldehyde derivative of prednisolone (11β,17α,21-trihydroxypregna-1,4-diene-3,20-dione). Stereoisomerism<unk> (2 stereoisomers) (R)-Budesonid(22R)-configuration (S)-Budesonid(22S)-configuration
Budesonide
Fluticasone furoate
Flumetasone
Fluticasone
Fluticasone propionate
Clobetasone
Diflorasone diacetate
Theophylline