If I were to get accepted would I be able to get the same medicine I get here in the U.S.?

I was diagnosed with major depressive disorder around 4th grade. I’m good mentally if I take it every morning. However will i still be able to get the same medication in Japan? Without this medication I basically shut down completely. I shut down for 3 out of my 4 years of high school because my family didn’t get me my medicine so I know exactly how I’ll become.