The doctor looked the drugs up in a book and said there was little
difference in the price,
and asked if I would like to go on Effexor
XL. I said yes, and also asked for dosage to be increased, so now I am on the original drug again. I do not know if there is any difference, I am told not, and have googled it, but as I know Effexor suited me I am glad to be on it, if only to put my mind at rest.
I don't know about XR and XL though. I have always had XL.