Pain is a major symptom of IBS and it can be daily and it can be severe and still be IBS.Generally for IBS pain if antispasmodics do not work the next thing to try is antidepressants. Some of the pain from IBS may not be spasm related, but improper signals being sent to the brain. Basically there is some threshold that pain signals should reach before you feel them. With IBS it is sometimes like this threshold is gone and every sensation gets sent to the brain as pain (like if you could feel every time the stuff inside your joints moved rather than only feeling pain when you twist or sprain it) Antidepressants can reset that threshold and lower the level of pain. Typically tricyclics are tried first, and then the newer SSRI's. Like for depression it can take some time to find the medication that works in your situation. The doses used are generally lower than what is used for depression.Mind-body techniques (Hypnotherapy, Cognitive Behavioral Therapy, etc) can also re-set those pain thresholds. For me CBT greatly reduced the amount of pain I was in and my pain was daily and severe.If you can predict when pain will hit (for me it was after meals) and you take the antispasmodics prior to the pain hitting sometimes that makes them more effective than waiting for things to get bad and then taking them. But not all pain with IBS is spasm-related so they do not work for everyone.K.