Well if you (or anyone else) are in the US and eventually want to find out regarding domperidone, I found this link while helping a friend of mine a few years ago.

https://www.inhousepharmacy.vu/p-17-motilium.aspx

It’s from this old bookmark of mine:

https://www.lesbianmommies.com/buy-domperidone-without-prescription-us/

There’s tons of useful information here on how it works (for cisgender women, but I mean, the process is the same), risks, and most importantly, which manufacturers to order from:

What manufacturer do you order from? I order Motilium from the Janssen Cilag manufacturer that is a part of Johnson & Johnson (more info here and here).