How Long Could I Keep My Results from Minoxidil?

Hello, I cant seem to find a good answer for my question, I seem to get different answers, every where.

My question:
Im 24 year old, and suffer from mpb, i get bad sideeffects from propecia, my libido disappears.

So im only on minoxidil, 5%, and I have some really good results. But how long can I keep these results without a DHT blocker?
What would you recommend, as an topical dht blocker?

Thank you

There are no FDA approved topical DHT blockers. If Propecia kills your libido, try a half pill a day and then if that does not work, try a quarter of a pill per day. There will be some benefits for DHT block at that lower dose. Just like Propecia, you will lose the effect of minoxidil if you stop using it, but minoxidil, when it works, can last for years and years. The new Rogaine foam is reported to produce better skin absorption and blood levels than the standard minoxidil. That should mean that Rogaine foam may be more effective than the standard minoxidil.