Background:

(S)-(+)-Ibuprofen is the S(+)-enantiomer of Ibuprofen that inhibits COX-1 and COX-2 activity with IC50s of 2.1 μM and 1.6 μM. (S)-(+)-Ibuprofen has analgesic, antiinflammatory and antipyretic effects[1][2].

参考文献:
[1]. Evans AM, et al. Comparative pharmacology of S(+)-ibuprofen and (RS)-ibuprofen. Clin Rheumatol. 2001 Nov;20 Suppl 1:S9-14.
[2]. Xu HR, et al. The effect of CYP2C19 activity on pharmacokinetics of lansoprazole and its active metabolites in healthy subjects. Pharm Biol. 2010 Aug;48(8):947-52.