Dutasteride is approved in Japan
https://healthell.blogspot.com/2021/11/dutasteride-is-approved-in-japan.html
If it is not approved in the US, doctors will not write an Rx for medical-legal reasons. For example, if someone gets post-dutasteride syndrome, then there is no legal protection for the doctor for legal action taken by the patient.
from BaldingBlog - Hair Loss Info https://ift.tt/3ComJvV