Some time ago I concluded that it's almost a total waste for me to insufflate (snort) MDMA. Comparing the difference from snorting 40mg to eating the same; the amounts required when snorting (for me) were well above what's needed orally to get the same effect.
So I would suggest eating a quarter rather than insufflating if that was your intent.
Depending upon quality, a quarter can be an active dose, but that also depends upon
your variables; how often do you drop, how much is taken, poly use? etc etc., not too mention general health.
If a "luvin feeling" is all that's required - i.e. not wishing to be whirled and swirled - then for most people, a 1/4
usually gets them there, and at the same time they can feel secure knowing they've reduced potential harm considerably.
Now, if it were a 250mg tablet (as suggested on another thread of late) that 1/4 would become an 1/8. With my eyesight, I think I'd need tweezers and a magnifying glass for that
But unless you know roughly what amount of MDMA the pill contains, as Fry-d- pointed out, how do you
define a quarter?
If you're asking what is the smallest active dose of MDMA, then I can say it is governed by the answers already given, but generally it's considered to vary between 30-40mg. Depending upon how quickly this is absorbed, it may result in what appears as a sharp intense peak which is short lived, or smaller uneven spaced waves. No Tsunami, but enough to surf
