I take 200mgs of Spironolactone daily. I started out with 100mgs for about three months. I asked for a higher dose, and my endocrinologist agreed. I suffer from excessive hair loss. The Spiro has halped quite a bit. I don't have the hair loss anymore, but I don't have a lot of hair growth (on head) either
I haven't had any negative side effects with Sprio. I have taken it for about a year and a half now. I know that it can cause problems for a male fetus, so it shouldn't be taken if you are trying to conceive.
The sprio has helped with acne, hair loss and it has helped to lower my Testosterone levels. It went from 119 to 22. I also take Metformin 2000mgs daily. The combination works for me. Good luck.