Victor: after two weeks on the MT-II I'm as dark as can be. I've had three tanning sessions and I'm amazed at how much more defination I see in the mirror being this dark. (12% bf). I've had no side effects at all, but since I LOVE the wood enhancing characteristics of it, and since I'm as dark as I want to be, I've ordered some PT- 141 which SHOULD arrive tomorrow, (03/01/10).
I'll let you know how that goes but I acknowledge that I may not be able to answer your real question since I didn't have ANY nausea issues at all with the MT-II, even when I did 3mg/ day.
I really wish you could use this stuff without getting sick because for me, it is fucking INCREDIBLE!
While it is likely that bremelanotide does have pigmentation effects like melanotan II does there is some speculation that one of the reasons that there's been reports of people going darker with its usage may be due to shady sources selling melanotan II as bremelanotide (by just mislabeling it).
It'll be interesting to see if you notice any pigmentation effects with usage of the bremelanotide that you're ordering.
The following thread may be of interest to you:
http://melanotan.org/cgi-bin/yabb/YaBB.pl?num=1257890519
Cheers