Anticonvulsant potencies of the enantiomers of the neurosteroids androsterone and etiocholanolone exceed those of the natural forms.

Zolkowska D, Dhir A, Krishnan K, Covey DF, Rogawski MA.
Psychopharmacology (Berl). 2014 Apr 5;PubMed PMID:24705905; NIHMSID: 583077. [Epub ahead of print]
PubMed PMID: 
24705905