My husband has microscopic colitis which he could always control with large doses of pepto bismol. Recently however he has had a four week period of diarrhea that is not helped by pepto or even kaopectate. He decided to go off gluten to see if that would help. That has not helped. He has an appointment with a new GI doc tomorrow. I’m assuming he will offer another med that may help. Is anyone on a specific med for this condition that has helped?