Generic Venlafaxine has no time release properties, but there is now a Generic
Extended Release formula of Venlafaxine
now on the market.
I used to take Effexor
XR in the past. I know many people still on it and they report that they had a much better response to the name brand Effexor XR than with the Geneic Effexor XR.
If it were me and I could afford it, I would go with the name brand.