I noticed a great increase in shedding and eventually stopped. I have also asked them about the phenomenon of hyperandrogenicity and telogen effluvium with propecia. I define shedding as rapid hair loss, not usual few hairs on the pillow, sink, towel, etc. If you notice an excessive amount of hair in your pillow and notice that more skin is showing, you are shedding excesively.
But if you have a net loss of hair, this is what I would consider shedding. Propecia. Propecia.