I'm on it for arthritis, not gut symptoms, but once I get down to 10 mg, I have to decrease 1 mg at a time or I really flare. We haven't been able to stay below 10 mg for long, though, without having to go back up to 10. In two months, I've been on it for 2 years straight. So, I don't know if it could have caused the elevated white count, but it definitely would really impact me to drop that quickly.