Procter and Gamble (makers of Asacol) offer a patient assistance program where you can get $25 off per 30-day prescription. Info is available on their website (www.asacol.com). It's not much, but it's something.
I picked up a card a few weekends ago at a CCFA conference where I apparently wouldn't have to pay more than $25/month for Lialda, which is the same drug (mesalamine) as Asacol, but is an extended-release tablet, so you can take it just once a day. I couldn't find info on their webiste, but you could try calling this phone number that's listed in the brochure (1-800-416-9466) to see if you can get one as well.
I'd be nervous abous switching, too, if Asacol is working well! I'm sorry your insurance changed!
Symptoms began in November 2008, ~4 weeks after giving birth to my son.
Eased for ~3 weeks in December, possibly b/c of probiotic use?
Returned in January 2009 (with a vengeance), diagnosed with pancolitis on January 30.
Currently taking Asacol (400mg 4 pills 3x daily), Rowasa nightly,
40mg 30mg 20mg 15mg 10mg 10mg of Prednisone every other day, Culturelle probiotic, and Zoloft (25 mg).