"my husband was given this medication due to suffering long term knee pain. he took it for approx 6 weeks max and had to stop. 
the most awful side effects you can imagine for the whole time blighted him. maybe he was just unlucky and this med didn&#039;t suit him but it&#039;s cons certainly outweighed its pros in his case. 
weight gain
excess gas
dizzyness
nausea 
vomiting 
diarrhoea 
headaches......
not a good one for him at all. 

uk  based."