just try it your body will tell you, everybody is different, I started my eca stack today for the 1st time- typicaly in the past I've been partial to lipo 6 but I figured I'd give this a try. I will say I like it better allready, I took my 1st dose at 6am and its now 12:45 my time and I still am just looking for somthing to do my energy levels are nuts. I was going to do a 3 dose a day cycle but I'm thinking maybe 2 will do it for me; but that doesn't mean it'll be the same for you ie: same mg same amount of doses, I personally didn't think it would effect me like it has being I've alway been taking one thermo or another, I thought I would have a better tollerance but I'm not complaining. Right now I'm taking 25mg eph, 200mg caf,325 asp. Best advice would be take the 1/2 dose like you want and see how your body respondes and make your judgement from there for future doses.