Hey guys, I know lasix is very dangerous but my friend competing in 2 weeks absolutly wants to to it cause he heard a shredded guy here used that... 
anyway, do you guys have any protocol for that ?
I only used dyzide before it was easy to control so I would prefer if he did that but he wants to do lasix at all cost.....
it would be pills, not injectable
i used pill- form lasix and have never had a problem with cramping or flattening out, but if i had my preferences i would like you from what i have read, i prefer dyazide.
that being said, i read in a previous post of using 80mg a day- but that is what is used to conrtol your bloodpressure, not drop water for a show.
i start at 80 mg depending on the time of the show, about 7-9 pm the nite before. since it's active for 6 hours in the body, i usually made sure i didn't use more until this window was closing, because you have to make sure you don't strip yourself too much. so at 2am or so i'd hit 60 more. then about 8 am i would see where i was and i would then gauge how much i'd use from where i felt my water was at. i would usually being to taper it down at this time to 20- 40 depending. after pre judge again, the doseage depended on where i was at, but i did use it between morning and nite shows.
tell your friend to have salt and a shot glass handy if he starts to cramp. i supplemented with potassium/ magnesium heavily at this time, so i never cramped to the point where i needed it, but better to have had it and not needed it than be cramping to fuck and wishing you had it.
bear in mind the amount of water you'll want to push wil be dependant on the size of your friend. smaller guys may not need that kind of dosage.
best case scenario, before he gets too deep into his prep, run a trial and have him start at 60 and see how it works for him, and have him hit another 60 6 hours later and see where he's at. that'll be a good judge of how much he'll need to start with and how much to taper it down to.
hope this helps.