Tramadol
"I was prescribed  Tramadol to take together with Paracetamol for my chronic nerve pain. At first when I tried it, taking just one 50mg tablet it did almost nothing for me so I didn't bother taking it. Then later I tried taking 100mg together with Paracetamol and found it really helped and also improved my sense of well being, relaxation and general happiness. I take them only when necessary, and feel wary about taking it every day, because I've read of serious addictions. I hope that taking it just three times a week will be fairly safe longer term."