Man, I feel your pain...Waiting for a med to start having an effect just *sucks*. I've been on azathioprine now since February, with a dosage increase to 150 mg just 1.5 months ago. I think I'm *finally* starting to feel the effects of the dosage increase now... 1.5 months later. :/
In addition to the mental side effects of the pred (which, quite literally, drive me nuts), I was diagnosed with steroid induced glaucoma. So now I *really* need to come off the pred. Every time I try to get below 20 mg/day, I flare like crazy. I'm starting Cimzia this week, and am hoping that the Azasan/Cimzia/Entocort cocktail will be enough to allow me to elliminate the pred all together. Have you and your GI talked about combining your methotrexate/pred therapy with an Anti TNF biologic like Remicade/Humira/Cimzia/Tysabri? The total percentage of people that obtain a positive result from biologics isn't really that high (in fact, it's discouragingly low), but for those that it helps, it *really* helps. Cimzia, for example, quotes a 38% response rate.
Anyway, I hope things get better for ya, man.