Levoamphetamine improves the ability to stay conscious and awake.
Martin Cech -LRB- June 2 , 1976 in Havlickuv Brod -- September 6 , 2007 in Havlickuv Brod -RRB- was a Czech ice hockey defenceman .. Havlickuv Brod. Havlickuv Brod. Czech. Czech Republic. ice hockey. ice hockey. defenceman. defenceman. Cech played in the Czech Extraliga for HC Zlin and HC Lasselsberger Plzen before moving to Finland 's SM-liiga , spending one season with JYP and two seasons with Pelicans .. HC Zlin. HC Zlin. HC Lasselsberger Plzen. HC Lasselsberger Plzen. JYP. JYP Jyvaskyla. SM-liiga. SM-liiga. Pelicans. Pelicans ( ice hockey ). Czech. Czech Republic. Czech Extraliga. Czech Extraliga. Finland. Finland. He then moved to the Russian Super League playing for Metallurg Magnitogorsk , HC Sibir Novosibirsk and Salavat Yulaev Ufa before returning to the Extraliga for HC Moeller Pardubice .. Metallurg Magnitogorsk. Metallurg Magnitogorsk. HC Sibir Novosibirsk. HC Sibir Novosibirsk. Salavat Yulaev Ufa. Salavat Yulaev Ufa. HC Moeller Pardubice. HC Moeller Pardubice. Russian Super League. Russian Super League. He also represented the Czech Republic at international level .. Czech. Czech Republic. Cech was killed in a car crash on September 6 , 2007 .. car crash. traffic collision. Despite being deceased , Cech appears in hockey video games  : NHL 09 , 10 , and 11 .. NHL 09. NHL 09. NHL 10. NHL 11