Hi folks. Wondering whether those of you who use Tramadol can help me. I have been getting effective relief from Codeine over the last couple of months, H owever the inevitable has now happened in a short period of time- I've become tolerant and it's no where near as effective.I was wondering whether Tramadol has the same effect on the body? Has anyone experienced tolerance on this drug? Also are there any other common side effects? Constipation occurrd with Codeine for example which i tackled with a daily dose of prunes! I would also find it helpful to know what is the lowest effective dose of Tramadol that you have found helpful. Cheers.