Been on minoxidil for about a year and a half and have not seen even the smallest amount of regrowth.
My hair only started visibly growing after trying out the natural techniques to re-grow lost hair from http://www.regrowmyhair.info
Its also cheap and effective compared to those unnatural ways of re-growing lost hair with harsh chemicals !
I would highly recommend it to anyone who is suffering from hair loss right now ! =)