Discontinue treatment if seizure develops. Consider discontinuation of treatment in patients w/ symptomatic hyponatremia. Avoid use in patients w/ unstable epilepsy. Increased risk of serotonin syndrome or NMS w/ concomitant use of serotonergic drugs including amphetamines, triptans & opioids (eg, fentanyl & its analogues, tramadol, dextromethorphan, tapentadol, meperidine, methadone, pentazocine), w/ drugs that impair serotonin metabolism (including MAOIs), antipsychotics & other dopamine antagonists; bone fractures. Monitor patients for signs & symptoms of serotonin syndrome or NMS including mental status changes (eg, agitation, hallucinations, coma), autonomic instability (eg, tachycardia, labile BP, hyperthermia), neuromuscular aberrations (eg, hyperreflexia, incoordination) &/or GI symptoms (eg, nausea, vomiting, diarrhea), & those resembling NMS including hyperthermia, muscle rigidity, autonomic instability w/ possible rapid fluctuation of vital signs & mental status changes; clinical worsening, suicidal behavior or thoughts & unusual behavioral changes especially when initiating therapy or during any change in dose or dosage regimen; signs & symptoms of glucose fluctuations; w/ controlled epilepsy. QTc prolongation/Torsades de pointes. Mania/hypomania activation; seizures. Risk of suicide attempt in depressed patients. Observe patients w/ depression while treating OCD, panic disorder, PTSD or social phobia. Long-lasting sexual dysfunction. Bleeding abnormalities from ecchymoses & purpura to life-threatening hemorrhage. Hyponatremia as result of SIADH particularly in elderly & patients taking diuretics or who are vol-depleted. Loss of glycemic control including both hyper-/hypoglycemia in patients w/ & w/o pre-existing diabetes. Patients w/ QTc prolongation risk factors; history of bleeding disorders & glaucoma; angle-closure glaucoma. Carefully monitor glycemic control in diabetic patients. False +ve urine immunoassay screening test for benzodiazepines & may expect for several days following discontinuation of therapy. Avoid co-administration w/ amphetamines, tryptophan, fenfluramine & fentanyl, 5-HT agonists, or St. John's wort (
Hypericum perforatum). Not be used in combination w/ MAOI including selegiline (selective), moclobemide (reversible), linezolid (reversible, non-selective) & methylene blue, or w/in 14 days of discontinuing treatment w/ MAOI. Switching therapy from SSRIs, antidepressants or anti-obsessional drugs particularly from long-acting agents eg, fluoxetine. Concomitant use w/ SSRIs, drugs affecting platelet function (eg, atypical antipsychotics & phenothiazines, most TCAs, aspirin & NSAIDs). May impair ability to drive or operate machinery. Hepatic impairment. Women of childbearing potential should use adequate method of contraception during therapy. Pregnancy & lactation. Increased risk of suicidality in childn, adolescents, & young adults (18-24 yr) w/ major depression & other psychiatric disorders. Monitor growth & development abnormalities in ped patients 6-16 yr on long-term treatment.