http://www.medications.com/effect/view/39120 I HAD THE USUALLY SIDE EFFECTS OF PREDNISONE-WEIGHT GAIN, CONSTANT HEAD ACHE, BLURRED VISION AND AFTER SOME MONTHS RAPID HEART BEAT WHEN I LAID DOWN AND EXTREME FATIGUE. WELL, IT TURNS OUT THE RAPID HEART BEAT AND FATIGUE WERE NOT FROM PREDNISONE AND I END