Just about 2 years in, definately improved, only 21 though! I was balding quickly and got on finasteride at nw2, maintained and hair has now turned black, used to be light brown!
I saw noticeable regrowth within 2 months. However, I think I started developing ed side effects right afterwards. Not sure what to do now. I may go off it. I'm 32 by the way.
Hey Yankee, took about 6 months to get any cosmetic effect, but the itching and shedding halted about 2 weeks in, finasteride seems to have lost effectiveness for me now, dutasteride is the next step.
I suppose it will be difficult at 43, well, depending on the extent of hair loss, stick with it or think about dutasteride.