&gt; Fun fact: The package insert also states: &quot;It isn&#x27;t completely clear how antidepressants work, but they can help increase the Serotonin and Noradrenaline levels in the brain.&quot; Very confidence-inspiring :-&#x2F;<p>Well at least it&#x27;s fair. The chemistry of the brain is still very poorly understood.<p>Note that many drugs were discovered to have effects before we knew HOW to explain why they work.