What is this advertisement?

Can you understand what this advertisement means??
This is a medicine specialized for Japanese commuters!!

Many Japanese in a large city commute to their office/school by train. So you know!? the train in the morning are full of people and people without any affordable space. Then, imagine! if you would suddenly feel defecation in the train while you are pushed into the congested mass. What you can do is just waiting to a next stop for several minutes with fighting desperately against unintentional elbow beats by other passengers!!!

Please do not laugh at this funny story. This is a serious problem in Japan.

In such a stituation this medicine become the God, because it immediately alleviates the acute feeling of excretion. So many Japanese commuters have this medicine, even if they sometime forget to bring an important report for their boss!!

Is this a stupid custom???

But We Love Japan!

*This medicine, named "Stoppa A Anti-Diarrhea Medicine," is manufactured by LION Corp.(http://www.lion.co.jp/en/products/html/pro00201.htm#15)