John I signed up just to let you know that your friend will no dramas on 400mg a day using mdma. Im on a far higher dose than that and it actually gives me alot weaker come downs than I got before I was on it.
One thing to keep in mind is that Sodium Valporate is a salt and as such you have to drink plenty more water than the average person, so combined with mdma it is something to be mindful of.
Cheers