If the compounds you are running are accelerating your hair loss you will have to take any hair loss product until you stop taking those compounds.
I am trying RU right now and it is too early to tell. Once I use it for 6 months, I will post my opinion but it is too early to tell. Propecia is always a good start as is Nizoral shampoo. I don't like minoxidil because it never did anything for me. Minoxidilmax has a wide selection of hair loss products from RU, topical propecia, topical dutasteride, and RU. They are in the US but I have never had an issue with any product coming through the border.
If you are going bald 'naturally' and use minoxidil, propecia, or RU - when you stop the hair loss will continue. Per the former point if it is more accelerated due to the extra compounds when you stop those you won't need it.