Old psoriasis advertising

[Fred]

I found a matchbook from the 1960s for sale on an auction site. The matchbook had advertising for Tropisan an "Amazing Medical Tablet For Psoriasis" I have looked but can't find anything about Tropisan apart from they were in Chicago and I found another matchbook for sale on another auction site. I suppose they disappeared because it was the days before regulations on medication and advertising.

[Hanna]

Wow, that's amazing ...... I wonder if anyone ever had success with it