There are actually a couple of things that you need to clarify before you can acurately get the response that you are seeking...
First of all, YES--MDMA
DOES have effects on the kidneys. It is an ADH (anti-diuretic hormone) agonist: therefore, it can actually cause people to OVER-hydrate and these are the only reported deaths (that I'm aware of--actually according to SWIM
's friend who plans on experimenting with MDMA and end-of-life care.)
The most important question that is bothering me is this: Why do you only have one kidney? did you donate
one to a relative? do you have renal failure/polycystic kidney disease, or what?
Also, how OLD you are is pretty important as well. That makes me think either congenital malformation (like horshoe kidney or something like that) vs. you donated a kidney to a relative... Very different things.
However, you must realize that you CAN NOT over-drink your water if you do, indeed, decide to try this drug
. I know that this stands in the way of every suggestion i've ever seen to people in regard to taking MDMA, but in YOUR case, just a small amount of ADH coupled with too much water could cause you to actually DIE from the xtc.
BTW, ADH, desmopressin, and vasopressin are all the same thing. I just can't recall if xtc causes a release of ADH or if it just acts like ADH on the kidneys... This is a hot topic right now in medical advice and harm-reduction. especially if it's true that the only deaths were due to overhydration.