why does clen make you tired?

[OXANDRIN]

i am takig IP's .2mg clen and they are F*ucking me up... i feel very tired and drowsy. what can i do to combat these side affects

 

[MaxBiceps]

are you sure it's clen and not valiums or something? I've never heard of clen making anyone tired.

 

[Daeo]

Only while coming down do I ever feel tired. Otherwise I'm wired...

 

[ROIDRANGER]

to much to quick will make you that way, cut back till you feel better than raise your dose slowly....same has happened to me...