Should I use finasteride or dutasteride if I already have issues getting it up?

[zyzz]

Anyone had experience with performance issues (not full ED as I can get it up fapping), and still taken finasteride or dut? Which one has less reported sides for sexual performance? I just don’t want to add to the problem if I already have one.

[Future Hair Doc]

There was an older study that found finasteride to have a lesser chance of ED as compared to dutasteride in men with BPH:

https://www.urologytimes.com/article/finasteride-had-fewer-sexual-side-effects-compared-dutasteride-men-bph

However, newer data says that both have the same chance of ED. The newer study also found dutasteride to be more effective then finasteride in treating androgenic alopecia:

https://www.ncbi.nlm.nih.gov/pubmed/30863034

I would be very cautious in giving a patient a 5-alpha reductase inhibitor with pre-existing ED. Have you consulted with your physician? Perhaps you may consider topical minoxidil/finasteride as the efficacy in treating androgen alopecia is the same as the systemic form of the medications and the efficacy is roughly equal.