Serotonin syndrome w/ non-selective MAOIs, MAOI-A eg, moclobemide, MAOI-B eg, selegiline, serotonergic drugs eg, tramadol, sumatriptan & other triptans. Lowered seizure threshold w/ TCAs, SSRIs, neuroleptics (eg, phenothiazines, thioxanthenes, butyrophenones), mefloquine, bupropion, tramadol. Enhanced effects w/ lithium, tryptophan. Increased AR incidence w/ St. John’s wort. Altered anticoagulant effects w/ oral anticoagulants. Increased bleeding tendency w/ NSAIDs. Contraindicated w/ pimozide. Concomitant use w/ CYP2C19 inhibitors eg, omeprazole, fluoxetine, fluvoxamine, lansoprazole, ticlopidine or cimetidine; flecainide, propafenone, metoprolol or drugs metabolized by CYP2D6 eg, antidepressants or antipsychotics; alcohol.