Levoamphetamine is a stimulant.
Kenza Bennaceur -LRB- كنزة بن ناصر born January 14 , 1976 -RRB- is an Algerian former swimmer , who specialized in butterfly and in individual medley events .. medley. Medley swimming. She won two bronze medals in the 200 m butterfly -LRB- 2 :33.54 -RRB- and 400 m individual medley -LRB- 5 :29.60 -RRB- at the 1999 All-Africa Games in Johannesburg , South Africa .. medley. Medley swimming. All-Africa Games. All-Africa Games. 200 m butterfly. Swimming at the 1999 All-Africa Games. 1999 All-Africa Games. 1999 All-Africa Games. Bennaceur competed only in the women 's 100 m butterfly at the 2000 Summer Olympics in Sydney .. 2000 Summer Olympics. 2000 Summer Olympics. Sydney. Sydney. She achieved a FINA B-cut of 1 :07.00 from the All-Africa Games .. All-Africa Games. All-Africa Games. FINA. FINA. Swimming in heat two , Bennaceur decided to scratch out from the race , and then withdrew from the Games for personal and health reasons on the first day of prelims .