I took my first shot of Prolia last September. Since October, I have had constipation in place of my regular, life-long kind of bowel movements. What do I do to solve this problem? Even gentle laxatives, like Ducolax, turn to diarhhea rather than getting me back to regular bowel movements, not just hard ones or drabs of movements. I am taking magnesium, which is supposed to help, according to my gastroenterolgist.