i have been on dutasteride now for close to 1 year, minoxidil for multiple years and just started spironolactone about a month ago. Before spironolactone (oral, 150mg) my hair was doing better so I thought at least. I began taking spironolactone which seems to have caused a pretty big shed and thinness throughout my frontal and crown. my hair is pretty much see through at this point and very thin.----- Does a hair have to shed in order to thicken? or can it thicken without shedding and become stronger without falling and having a new hair replace the old brittle hair? im not sure what im going through is medication related or not, but i hope so.