I haven't tried the mineral oil that Dale recommends, but know it works with horses, if that's any help
I'm on large amounts of narcotics and they have a way of sealing me up tight if I don't stay on a regular dose of dried apricots. I have gotten large bags at Costco, but like the ones from the Health Food store better as they are fresher and taste better.
I can't use any of the psyllium as I am wheat intolerant, actually every grain including rice, so I have to try other methods as well. I've been backed up for a week at a time without my apricots, and the gastro specialist gave me all sorts of horror stories about not letting it get that bad again.
Hope you are able to find something that works soon.