Dulcolax suppositories work really well and within 20 minutes, though faster for me. My G.I. doctor said they are better than Fleets, though more expensive. He sees nothing wrong with using suppositories. Also, try eating 1 or 2 kiwis a day and take magnesium. I take 425mg. a day. Also, drink prune juice 2x day and prunes 2 x day. But with all that, still rely on my Dulcolax.