Dutasteride is the usual progression from finasteride. If you want to go even harder than that, you could try anti-androgens, Spironolactone, Cyproterone Acetate and Bicalutamide are the most common. CPA causes least estrogenic side effects. Im planning to get on bicalutamide later this year myself. IMO the best thing people here can hope for the future, are topicals that either bind to receptor to destroy it, or things that can grow hair even better than Minoxiddil like KY19382. This forum is more transplant related tho, so you should go to HLT, people there are more interested in treating hairloss with pharmaceuticals.