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 ...

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 ...