"http://wwwinformationdelightinfo/encyclopedia/entry/Enantiomer" class="copylinks">"S" Form has a shorter half life (about 4 hours), whereas the "R" Form has a much greater half life (about 14hours)
 
Schedule I (
"http://wwwinformationdelightinfo/encyclopedia/entry/United_States" class="copylinks">USA )<br /> Class A ( UK )<br /> Schedule III ( Canada )