Has anything (drugs/other modalities) helped you improve bad balance?

Mine is worsening. I'm afraid that before long I will be bedridden in order to avoid the falls I've taken over the past 10 years. In December '09 I fell at home & broke my wrist. I'm almost OK thanks to specialized hand therapy but last night I stumbled yet again and did some kind of damage to my toes.

I'd love to hear of anything that's helped.