Thanks for coming to HCM. Mesalamine
is a good drug for ulcerative colitis
. There had been long-term usage studies (clinical trials) on mesalamine where it was found safe considering risk-benefit ratio. The symptoms you mentioned are side effects of this drug but are expected during the initial use. At this point, your symptoms doesn't seem to be due to mesalamine. I would advice you to contact your local physician who can check for other causes like blood sugar changes and blood pressure level & if required CT scan
Wish you good health!