I was prescribed melatonin when I was 11. In the UK it is only available via prescription (source on that: https://www.simpleonlinepharmacy.co.uk/health-advice/sleep/melatonin/why-is-melatonin-banned-in-the-uk/#article )
My sleep schedule was haywire (hormones + emerging gender dysphoria did not help) but melatonin really helped me. I also think it helped my anxiety a bit? I’m not sure if that was just bc I was sleeping better but I have terrible social anxiety and it seemed to take the edge off it. anyone else? :)
It is a documented phenomenon that ASD people don’t produce enough melatonin but research of sketchy about long-term effects of its use and there is essentially no research on its long-term use in ASD people.
I took 2mg every day for a year and I’m stepping it up to 5mg. It does help.