Diltia XTSide Effects - XML FEED - Medications.com http://www.medications.com/se/Diltia+XT Recent side effects for Diltia XT I am not sure if the Diltia XT is the problem. I have experience Thu, 11 Oct 2007 09:28:10 -0400 http://www.medications.com/effect/view/24258 I am not sure if the Diltia XT is the problem. I have experienced fatigue - not sleepiness, just tiredness for no reason and also some slight anxiety. http://www.medications.com/effect/view/24258