Creatine and running?

Just want to check what the forums ideas are on taking creatine whilst training for an ultra marathon...

I also as a side note am training to do a sub 20m 5km and getting very close to it at roughly 22:30m for my 5km...

I just want to get an ida on peoples thoughts and ideas on the matter.

Currently taking iron (I don't eat enough, mainly meat but meh...), phenedrine and creatine as well as whey protein after a long run say anything over 2-3hrs...