marc_t said:finasteride will ruin your health.
How can you make a statement like this? You took the drug for 3 days!
I don't want to get into one of these stupid "flame wars" here, so I'm just going to say that, in my opinion, you're not in the least bit qualified to make this kind of statement, and it's frustrating to see you make it.
I suggest continuing with the drug for at least a month, THEN decide whether you've got side effects..
Just my humble opinion, and of course you're the master of your own decisions.
Good luck