An SNRI (serotonin and norepinephrine reuptake inhibitor) is one of two major classes of medications used to treat clinical ...

Tell your doctor if you have ever abused illegal drugs or prescription medications. Effexor XR is not usually prescribed for people under the age of eighteen. Your doctor will gradually reduce ...

Risk of life-threatening serotonin syndrome: increased risk when Effexor XR is used concomitantly with other serotonergic drugs (including triptans, TCAs, fentanyl, lithium, tramadol, tryptophan ...

And next, you're treated with a serotonin-norepinephrine reuptake inhibitor (SNRI), such as venlafaxine or duloxetine, and you don't respond to that either. "Medication acts as a kind of filter ...