I would recommend that you should be guided by your doctor/dermatologist when taking this. Personally I started on 2.5mg a day for three months and then upped the dose to 5mg a day by my dermatologist. Iβve been on this regimen now for a year and a half (?). My native and transplanted hair as well as my beard feels thicker and stronger and I believe stays in the anagen phase longer. I havenβt experienced any side effects and for someone who cannot take Finasteride, oral minoxidil has been a God send. π