PC, a.k.a. Lecithin, is OTC, but the researchers have patented the application of enterically coating it for delivery to the colon (which requires even more enteric toughness than for delivery to the small intestine). I emailed a dozen or so compounding pharmacies to ask if they would do it for me and they either refused or didn't respond. I wish I had a rich uncle who was a supplement manufacturer, lol.
Pancolitis >20 years, allergic to all 5ASAs
Tried everything under the sun (natural and alternative)
Some partial success with TSO but was too expensive to keep up
Currently Remicade and lots of probiotics, tapering pred again, maybe surgery this year