"Why does this matter? Because the two scales used to rate depression in this study, the Hamilton Scale and the Montgomery-Asberg Scale, both count reduced appetite and sleeplessness as symptoms of depression. If you're on mirtazapine, you're unlikely to have either problem - you'll be more worried about the exact opposite, insatiable hunger and drowsiness. So mirtazapine could reduce your total score on these scales even if it didn't change your mood. I have no idea to what extent this is a factor in these results, but it could be important."

Two Drugs Are Better Than One?