MAO inhibitors (e.g., phenelzine, tranylcypromine, isocarboxazid), ritonavir,
bupropion, amphetamines, anticholinergics, sedatives, chlorpropamide, tolazamide, warfarin, fluoxetine, fluvoxamine, citalopram,
escitalopram,
paroxetine, sertraline, cimetidine, carbamazepine, haloperidol, smoking, methylphenidate, valproic acid, clonidine, venlafaxine, protease inhibitors, quinidine, diltiazem, verapamil, lithium, phenothiazines, drugs which prolong QT interval.