Vitamin B6, Vitamin B17, Dog dewormers, Mushroom Supplements, Melatonin and Puberty blockers

Your Questions on Medicines and Supplements answered
Vitamin B6 – can you overdose?
Vitamin B17 – does it exist? Is it a strong B12 for curing cancer?
Dog dewormers for humans? (NO – just NO!)
Mushroom Supplements – is there any point?
Melatonin – does it help with sleep?
Puberty blockers – access for under 18yr tansgender in the UK