(R)-Omeprazole report is in-depth investigation for global market. (R)-Omeprazole is the inactive isomer of omeprazole (Item No. 14880), a gastric proton-pump inhibitor.1,2 A stereoselective hydroxylation of (R)-omeprazole is mediated primarily by cytochrome P450 (CYP) 2C19, whereas CYP3A4 favors sulfoxidation of the active (S)-enantiomer. ... Read more