 [ Symptoms ] was prescribed prozac for ibs d and anxiety i now have worse diarrhea upon waking would tricyclic a d be better  i have been taking prozac for a week first was prescribed lexapro which caused constipation all day except in the morning so was switched to prozac i have worse diarrhea in the morning than i did on no medication everything i have read says ssri is are good for constipation not diarrhea tricyclic a d are better i have also read about people later getting colitis and c diff due to being on prozac long term which scares me [ Disease ] i have ibs d also i could not take prozac for even a day it made me sick and very dizzy for 20 years i have been on buproprion for depression and loperamide for the diarhea but still have it a couple times a month