Like "I have been experiencing hair loss such as you describe for the last few months. I take Metformin - 500mg twice daily. I have also searched the internet for an answer and found a lot of what you find. But based on the number of times I encountered the discussion of a relation between Metformin and hair loss I am pretty much convinced it is related. I have always had extremely thick hair, so the loss, while an unbelievably great amount has not yet reached a point to cause me to stop my Metformin, especially since I believe the Metformin is a primary player in my numbers being as good as they are. I do plan to discuss it with my doctor when I see him again in November, unless the hair loss reaches a panic point for me. "