No smiles please, we're in Warsaw

Ever wanted to see how joyful Polish citizens can look after they've been treated for a nightmarish depression? In the last week or so posters have appeared all over Warsaw that purport to show you exactly that.

From the label:

Deprim has the remarkable ability to preserve your natural feelings of world-weary suffering and pervading sense of dissatisfaction with life - while radically improving your perception of the world you live in. Deprim has the power to make even a homeless drug addict believe that they are living in a soap opera.

As the model in the picture (and no doubt wife of the distributor) exclaims:
"Now I can get on with my bitter life in style!"

What could it do for me I wonder?