I am glad you are finding relief. I too had problems due to sensitive stomach..the only one I could handle was a low dose of prescribed Hydrocodone or known as Vicodin for severe low back pain. I was too take two a day and it helped the pain for six hours. I was also on Methocarbamol or Flexerall (muscle relaxers) and Naproxen 500, for seven years. Pain meds are notorious for causing severe constipation..so had to take Movantik and Senna. I got tired of constipation all the time, and went off pain medication cold turkey, and I fear I have ruined my digestive system..I have not been the same since going off of them..over a year ago. Now, I have gotten IBS, worsening constipation, severe weight loss, sometimes nausea. If someone (pain mgt Doctor) would have told me this, would never have gone on pain medication.