I've been IBS-C a long time. I have an extensive regime daily which helps including citrucel, stool softeners, magnesium citrate, Ezekiel bread and lots of water. However, even with all that, I still don't 'go' properly all of the time. I use Peridiem (with senna ) about 2-3 times a month. The pharmacist I talked to said that should not be a problem. So, I don't know if it is really OK or not. I only know that it is the 1 thing that has really given me relief when I need it. Too bad it has addictive qualities. I think that someone posted a good question though, could it be that with chronic C, perhaps it is OK to use more often? I'd like to know your Dr.'s response when you ask him/her about long term use for chronic C.