my age 18 i take duta+fin…i want to start oral minoxidil 2.5mg ….my plan i will take 15-20 years…it will be safe for me? and also my hair stable?I am afraid that minoxidil will telorance after 2-3 years,and not response well that I will lose my hair again at the age of 21-22. Will I be able to keep my hair for 15-20 years if I use fin and oral min together?