Hello everyone. I'm new to this site and have a question. I've been using propecia for about 14 months or so and I've been having great results. Pretty much sopped the hair loss. I want to donate blood but was told I have to be off Propecia for 4 weeks prior. I am planning on stopping for 1 month and was wondering if I will see any big differences from this brief discontinuation. Thanks for the help. Great site.