1.   Herbal Ecstacy also includes a combination of Ma Huang and kola nut.

2.   One product marketed to body builders combined ephedrine with kola nut, Zeller said.

3.   People consume it in many forms, including coffee, tea, sodas, mate, kola nuts and as tablets to stay awake while driving.

4.   Questions about safety led to the removal of anything containing chaparral, comfrey, yohimbe, kola nut, pennyroyal and ma huang, because of reported illnesses.

5.   The firm that makes Formula One has since removed the kola nut.

6.   Americans should not consume a dietary supplement containing the Chinese herb ma huang in combination with kola nut, the Food and Drug Administration warns.