GP won’t prescribe melatonin

I’m having sleep issues and I’m fed up being exhausted so heard melatonin would help but it’s hard to get in the UK

Just had a call with my GP who said they’re not licensed to prescribe it in the UK unless for very specific reasons, first one being adults with dementia and second one being kids with ADHD/Autism.

He gave me some alternatives which I am ok with for now as he’s actually a great GP and they were natural things instead of strong sleep drugs. But I challenged him on how you can give melatonin to kids but not adults because my brain doesn’t stop being Audhd as I grow older… my hunch is that all this noise going on with the nhs not accepting shared care agreements and stopping people’s ADHD medication means they’re also advising GPs to stop prescribing melatonin

Anyone else had this experience?