Alternatives to finasteride

[youngster]

Hey guys,
I'm 18 and I've been using minoxidil for about 4 months now with pretty good results actually.
However, I want something to counter the DHT as well, as my regime right now is just minoxidil and Ketoconazole.

I don't want to take finasteride just yet (nothing against it but I just want to wait a couple of years for personal reasons).
Is there any good alternative?
I've read about beta sitosterol and saw palmetto but I wanted to hear from you guys, if you have tried anything or recommend it.

 

[Folliman]

As far as I know, there's nothing FDA approved nearly as good as finasteride.

 

[youngster]

As far as I know, there's nothing FDA approved nearly as good as finasteride.

The thing is, I don't mind it being non-FDA approved and weaker than finasteride. All I want is something to at least partially help with DHT, and support my current regime.