It worked for me, but had too many side effects in the end. (like waiting 5 minutes to start to pee... , weight gain, and blurry vision). But we are all different, so you may be luckier. It's a very old and well known med - as in *really old* so all the effects are known and there are no surprises anymore.

You need to give it a month at least, and maybe see if you need to up the dose slowly until it starts to really work. (ask GP I mean!) I forgot how much I took in the end, but it was much more than 10mg.

Edit: right, found an old stash. I worked up from 10 to 50mg IIRC. Of course, the higher the dose, the more chance for annoying side effects. And as always with these: don't just stop, but ask for a regimen to go off them gradually.