ibromyalgia
"I would not recommend for a sick animal much less a human being

After a back and neck surgery I was given Tramadol for the pain by the specialist but within 5 days I had a massive decrease in movement muscle mass and strength in my left arm and shoulder eg my biceps went from 17in to just under 7in I lost nearly all movement in that arm 

Instead of a decrease in pain I now suffer chronic muscle and nerve pain

I immediately notified the specialist (quack) and his reply was oh there's nothing to worry about 

Even my GP said he couldn't help (needless to say have change specialist and GP]

Slowly over the last 4yrs and with the help of my new GP through exercising my Left arm almost back to normal and have learnt to cope with the pain"