Its also pretty harsh on your hair if ur prone to MPB. Also, it can play havoc with ur joint lubrication. Apparently taking deca with the winny will sort out the joints. Only thing for the MPB is procar (propecia) but you shouldnt take it weth deca people will start calling u Yul Brynner if you do... or so ive been led to believe from other discussions.
Do a search on winny/winstrol for some more good information. Its probably all been covered before.
STUBS