Propecia and Neurotransmitters in the Liver

hello i have one truly important question. does propecia have any long term effects and could it be usefull for more than 5 years. does propecia have any affect on nerotransmitters in the liver and etc as well.

If you are taking medications that impact neurotransmitters, then they might cause hair loss, as there are many such medications on the market which are used for various medical conditions. I do not see direct evidence of a 5 year impact on neurotransmitters from Propecia.