Does Mau Haung restrict your blood vessels?

[BEAUCHAMP4]

I had a friend of mine that is a trainer tell me that Mau Haung (an herb that is found in alot of dietary supplements) can restrict the blood vessels in your brain and cause you to pass out during a cardio workout. Does anyone know if this is true? :confused:

[AnnaD - TX]

I am thinking if its not banned like ephedra it should be ok. Just my guess?

[dana82]

Ma haung is ephedra....