Thanks for this interesting question. Does dutasteride help individuals with Androgenetic alopecia if finasteride did not? Well, for men, the answer appears to be yes.In fact, last year, Jung and colleagues from South Korea studied 31 men with male balding who took dutasteride after finasteride did not help them. Interestingly, 77.4 % of these men improved their hair density (17 improved slightly, 6 moderately, 1 markedly). This study suggested that dutasteride could be a good option for men if finasteride does not help.Reference:Jung et al. Effect of .dutasteride 0.5 mg/d in men with androgenetic alopecia recalcitrant to finasteride. Int J Dermatol. 2014 Nov;53(11):1351-7
Can Dutasteride work better? Dutasteride is not FDA approved and it can produce more side effects including sterility (not common). It may be slightly more effective than finasteride and you would have to find a doctor willing to prescribe it. Not all doctors will do this.