Ah, well in that case: chances are you won't get it via the regular GP route unless you're pregnant
So good luck with that!
The thing is that practically most doctors normally prescribe medication if it has been absolutely clinically proven to work. So far, it has only been extensively tested on pregnant women + women with postpartum depression and for that reason specifically prescribed for that target group.
You can copy Lurius' smart move to circumvent this all together by asking Dr. De Ridder to prescribe intranasal Oxytocin. It's weird how the prescription protocol in Europe works, but there are apparently loopholes that you can use to your own advantage. You can hook him up via an online consultation. Only thing you need to keep in mind is that you have to pay a fee of 80 euros.
Et voilà, here's the link in case you're interested:
https://www.brai3n.com/en/practical/