A fun fact is that RU58841 actually is somewhere available to buy in the store over the counter as a topical hair loss treatment and that country is Indonesia. It is marketed there as “Mezogenrx” as a “extra strength topical DHT inhibitor.
There seem to be two versions of the RU58841 topical available in Indonesia. One red version that has a strength of 2% RU58841 combined with 5% minoxidil sulphate and a blue version that contains 1% RU58841 with 5% minoxidil sulphate.
See a picture below of the two versions. Don’t be misled by the “FDA approved” thing as it is obviously not FDA approved. Apparently regulations in Indonesia allow for RU58841 be marketed and sold. You can even find pictures online of people who use this product in combination with other stuff in their regimen.