This is just in response to the messages posted about Asacol and Salofalk. These drugs are not one and the same. Asacol is Asacol (little red/orangish pill), and Salofalk is Salofalk (oval-shaped yellow pill). I was on Asacol several years ago, and it was not effective for me. In fact, I was literally unable to digest it, and it was appearing in my stool as whole (completely undigested). I was then put on Salofalk, which worked for some time. These drugs are similar in that they come from the same class of drugs - they are both what are called "Delayed-Release Mesalamine drugs". This is perhaps why it was said that they are the same thing. As in my case, people may find that one works, while the other isn't overly effective. I suppose some doctors might believe that if one hasn't worked, the other isn't likely to be effective. But, it's worth asking. Finally, for the record, I am from Canada, so I know that both are available here. Best wishes.