Voltarol or voltaren

hi guys, 

is there a difference between voltarol gel and voltaren gel.

i have a hunch they are possibly the same thing but one is for American market the other. U.K. 

Voltarol gel is what I get from the chemist in Britain even when I ask for voltaren. 

Oh no says the pharmacist you've got it wrong,this is what you are after.

Are they the same thing?

thanks

Mike

Not the same but contain the same active ingredient. What I found on the internet.

What does that stuff do you are mentioning? is it for pain in the knee?

Yes , both contain diclofenac , an anti inflammatory painkiller . You can get details if you Google them . Hope this helps .