All I'd say to the original poster is be sure to give Propecia a decent chance before committing to another treatment. It's not unusual to see peak results from finasteride (or dutasteride) two years in... of course I have no idea when you started treatment - adding such info. to the 'view my regimen' tab is useful in this regard.
That said, spironolactone twice daily has been of some benefit to my hair. The gradual frontal thinning which restarted after some four years of dutasteride-inspired stability has been halted, at least for now.
Slarti