the "lots of water" could be contributing to it as well.
You could consider to add a fibre supplement to bulk up the stool.
Curious...what is your diet like?
5ASA can cause diarrhea, loose stool for some..definitely.
You're not on any rectal meds..maybe that can help lower rectal inflammation...and in-turn, lower the reaction of the colon above that.
Options are 5ASA or steroid enemas/suppositories.
*Heather*Status:mini flare June 23* 6asacol daily+ Salofalk (tapered every 4th night)
~diagnosed January 1989 UC (proctosigmoiditis)
~5ASA: Asacol + Salofalk enemas (increase for flares tapered to maintenance)
~Bentylol (dicyclomine) 20mg as needed
~Probiotic 2 (Natural Factors Protec) + 1 (Primadophilus Reuteri) at bedtime
~Natural Factors Multi Digestive Enzymes with supper
~Ranitidine,Pariet (reflux) Effexor XR 75mg; Pulmicort/Airomir (asthma)
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!