Both Minoxidil and Finasteride are FDA approved medicines for the treatment of hair loss.
It is an over-the-counter foam or liquid which you can rub into your scalp two times daily. It helps to grow hair and to prevent hair loss further. It is meant for use in both men and women. With its use mostly people get positive effects as hair regrowth, retarded rate of hair loss. This effect is mostly visible at 16 weeks and you have to continue its use to retain benefits.
There are few side effects of Minoxidil such as scalp irritation, unwanted hair growth on the nearby skin of the hands and face and tachycardia.
It is only for use in men. It is available as a pill. It has shown results in many male patients, in slowing down hair loss and helping in new hair growth. One requires to use this medicine continuously to retain its benefits.
It sometimes shows rare side effects such as a reduced sex drive and enhanced risk of prostate cancer. It should never be used by pregnant women.