Even though I was just diagnosed with colitis, I studied abroad last year for four months (in London) and experienced HELL trying to get insurance to approve my 4 months worth of birth control!! I would definitely start on that first-- I know all companies are different, but I had to write a letter to insurance saying what my medication was, the dose, why I was taking it, and why I needed 4 months worth, etc....and then I still had a tough time when I went to go pay for it (they wanted me to pay full price).
Before I left, I had to purchase international health insurance through my college, which I believe was $130 for the 4 months, even though I was lucky enough to never use it. I heard from other students, however, that if they had to see any doctor abroad, they had to pay in full for the visit/meds and then submit the claim to insurance when they returned to the US- in hope for a late refund. Since you're going for such a long time, I'm not sure if it's a different policy or not.
I do know that any prescriptions from doctors in the US have absolutely no authority in other countries (my doctor did tell me this before I left). So, my suggestion would be to immediately see a GI when you get over there, since you'll be there for awhile, and explain your situation and regular meds so you can get a script over there. Maybe you can get a copy of ur medical records to take with you?
I hope it works out for you, and have fun abroad!! I had an amazing time just in 4 months! ( I travelled a whole lot)
P.S- Money runs out fast when your abroad ! :)
Female- almost 21!
Diagnosed 9/1/08mild UC- left sided
Asacol 400 mg two 3 times/day
Hyoscyamine .125mg every 4 hrs
Percocet/ Vicodin as needed