N.I.C.E. guidelines confirm - that up to 150mgs Efexor/venlafaxine is an SSRI

8.3.3.1 Introduction
At the standard dose of 75 mg, venlafaxine is an SSRI. At doses of 150 mg/day and
above it also inhibits the reuptake of noradrenaline and, to a lesser extent, dopamine.
This progression from single to double to triple action is thought to be potentially
beneficial in patients with treatment-resistant depression.

http://guidance.nice.org.uk/CG23/Guidance/pdf/English

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