I am wondering if this is overcharging ?  In the Seomyeon area  i have bought two products with a huge price difference , 

1) Lamasol      price range 4000 w - 8000 \ 

2) Bactrobin  price range    2000 w - 4000 w

In my thinking pharmacies are not regular stores and would charge in a normal pricing system

I know at some stores I can buy Cethaphil Lotion for 10 000  but others charge 1 7 000