Hmm with this one I watched the reviews and took on board the members review a few posts above and recomended this to my wife as a daytime for when not in too much pain sort of strain ,anyway yesterday she was using it and the effects were strong ,like falling asleep and she puts it down fatigue on the day as the same strain has been pretty mild over the last week , crazy the difference the same strain can have day to day and another factor to add in ,strains that help when fatigued as this clearly had a sedating effect in these circumstances, whilst she would of preferred a bit of a pick up/clarity.