It's nice to read your encouraging post, coravh!
Heparin or heparin substitutes cause significant hair loss on dialysis.Post transplant drugs have the same effect, particularly cellcept and prednisolone.In my experience it takes 6 months for the hair to recover fully and start to grow normally again.(Apparently drugs stay in hair follicles for a very long time - up to 60 days in a 1 inch sample strand!!!!!)