Iman does really well on[Dick Van Patten's] Natural Balance canned Hairball formula. If I don't parcel the food out in maybe 4x a day small meals she gobbles and ralphs it. Try that food, it is a dollar a can, but I really like how it smells, and how I don't clean kitty puke everyday, usually discovering it on the way to the bathroom in the dark at 4am, by stepping in it...
I am using a cheaper kind to suppliment it now that she has gained weight, is healthy and demanding, but I try to feed some of it everyweek to keep her regular/eliminate hairballs.

where can I find that, Kitty? I have to force feed her, I'm feeding her about every 2 hours, but it's only about 2 teaspoons I can get her to eat of the hills prescription diet, plus a little yogurt, half n half (fattening) and a little chicken broth