I used Finasteride a long time ago and i never noticed any reduction in hair loss. What i did notice however was that it caused impotence. From then on I stopped taking it.
I then later started using minoxidil which halted my hair loss and promoted growht of fine hair. I have tried many suppliers and the cheapest one i have found to date is on the internet.
I have bought from them many times and their service is exceptional.
Therfore my adivce to you is to bin finasteride and switch to Minoxidil.
all the Best
Daniel