When does finasteride start working?

When did you see results after using oral dutasteride and/or oral minoxidil

These drugs start working almost immediately. Remember that hairs that are miniaturized and benefit from these drugs have to grow from their base, a process that takes up to a month or so before they emerge from the scalp. If you plucked one of these hairs at, say, four months, you would see a wider shaft at the bottom (the new growth) and a smaller shaft on the upper part (the miniaturized component of the hair).  Sometimes it takes up to 18 months to see the value from finasteride.