I don't know about that website. At least my WOT rating says they're not to be trusted. I know there are more legit companies like inhouse pharmacy who will deliver to the US. If that is the route you take, check them out instead.
I got my prescription recently, I had to go to 2 different doctors to get proscar. The first one only prescribed propecia and refused proscar while also acknowledging they're the same chemical substance. He told me something about the essence being lost when you split the pill (?). With the first doctor's prescription I went to the 2nd doctor and straight up told him I got blood tested to get finasteride, everything came back normal and I would like proscar instead because it is much cheaper. He wrote it up for me no problem. My point is, if you have to see a doctor, maybe online places could end up being cheaper.
I only got 10 pills or 40 day supply as a tester. I am on my third day and already noticing abnormalities. I'm willing to drop it if it becomes a legitimate concern.