Hair loss is progressing in the middle of my scalp, but medication isn't helping much.

Hair loss is progressing in the middle of the scalp. The duration has been about 20 years.

I have been taking medication to prevent hair loss for about ten years.

It was originally used for a different purpose, but it is a medication that causes hair growth as a side effect.

At first, it seemed okay as the falling slowed down, but it hasn't gotten better.

And now, the hair loss is gradually progressing again.

What kind of treatment options are available? Should I stop taking the medication?