No idea. Taken mesalazine as directed by my doctor for nearly 30 years, and been extremely lucky. (I’ve had to take predisone three times for flare ups, but n

No idea. Taken mesalazine as directed by my doctor for nearly 30 years, and been extremely lucky. (I’ve had to take predisone three times for flare ups, but not for more than 20 years. As I said, extremely lucky).