Has anyone tried the hair loss medication prescribed by the internal medicine department?

My hair has been falling out in clumps due to increased stress over the past few years..ㅠㅠ

Last month, a friend met an acquaintance after a year and asked what had changed because she looked so beautiful. It turned out it was all because of her hair. The acquaintance had thin hair, but it became shiny and fuller, making her look more beautiful.

I checked and found out that I have been taking hair loss medication prescribed at a certain internal medicine clinic in Busan for three months...

Have you ever been prescribed and taken a hair loss medication like this before?

How much do you usually take of these medications? Are there any side effects?