How long ago was the ERCP?
In some cases the spasms can be tamped down by the use of some anti-spasm meds, or the use of specific calcium channel blockers.
Hi, I've never tried the calcium channel blockers, but Gabapentin works really well at blocking out attacks. Its an anti-convulsant. U could ask your doctor if u could try taking it. I've never had an ERCP done bc i have sphincter of oddi type 3, but this pill really works on the pain