18 y/o - RU58841 or Finasteride?

[theyoungster]

Hi,
I turn 19 later this year and have been using minoxidil for 1 year now. I really need an antiandrogen though, as I want to maintain the amount of hair that I have right now. In general I have been an "early bloomer", with a little bit of chest hair right now and a full beard.

I was wondering on your opinions of whether I should use finasteride or RU58841? The way I see it:

Fin:
Pros
- FDA approved
- Just a pill
- Studies show that it can maintain for a LONG time

Cons
- Side effects! Especially considering my young age?

RU:
Pros
- Considered "safe", with few(er) sides, especially since it's topical

Cons:
- Slightly more time consuming to apply
- No studies, neither on safety or long term maintenance

Any help is appreciated!