Force Fit XL The dosage is over 2 grams of tribulus terrestris extract daily. you could take it before mattress or inside the morning. there may be a theory that given that testosterone is created throughout sleep that taking tribulus before sleep will increase it`s impact. there is no possibility of an over dose of tribulus terrestris extract so that you can take as tons as you`d like after http://www.strongtesterone.com/force-fit-xl/