If you go to www.codejunkies.com go to the ds and gba area and then search pokemon platinum you will find a 900x all Medicine cheat (I don't know if it will work, I haven't tried it yet)
You need a cheat for this kind of stuff. I hv this cheat in my Nintendo DS memory card.
You need in 2009 action replay D'S it souled be out sone...
D you m b a s s e s
Using cheat codes
You need a action replay and you hit l+r
You load a cheat and then you get 999 rare candies and other things like master balls the cheat should be found on cheatmaster.com
I think you can get it by giving a rare candy to a pokemon and go into a battle with ditto.
Or you get it by using a action replay code:94000130 fcff0000b21c4d28 00000000b0000004 0000000000000dac 03e70032d2000000 00000000
Or you get it by using a action replay code:94000130 fcff0000b21c4d28 00000000b0000004 0000000000000dac 03e70032d2000000 00000000