"about 15 years ago, i was diagnosed with lumbar stenosis &amp; went through the epidurals (12) over the 1st 5 years to keep from surgery. i tried all the pain medicines out there, but could not tolerate most of them, due to a very low tolerance for most pain medicines. i have bad nausea &amp;/or constipation. then finally my pain doctor had me try a low dose of methadone and it worked. it gives me 0 side effects, with enough pain to know my limits. i still play at a high level of softball for 13 more years &amp; recover thru 2 back surgeries. i just had my 3rd back surgery &amp; now have fibromyalgia, but i am still on the same 10mg of methadone. without this medicine, i would not be working today."