Activia did not help me. I had the UTI from hell (It would not go away), neurologist referred me to a urologist, we talked constipation too. He had me experiment with Miralax a little more each morning (I take it in my coffee) until it was just right for me, about every 4-5 days, fudgies told me I was taking too much. Got a well-formed, easily exited product that flushed easily.

The urinary problem got better too. I was retaining a little, so a little sat and stewed, now it empties better. Doing OK now almost a year later.