In this series:SteroidsOral steroidsTopical steroidsFingertip units for topical steroidsSteroid nasal sprays The letters α and β[18] denote absolute stereochemistry at chiral centers—a specific nomenclature distinct from the R/S convention[19] of organic chemistry to denote absolute configuration of functional groups, known kakım Cahn–Ingold–Prelog priority rules. The R/S convention a... http://www.bitspower.com/support/user/eyebeard2