Circadin 2mg slow release melatonin

It has worked wonders for me - I never knew the difference between over the counter melatonin which I tried many times while flying across time zones but never could see the benefit of. My doctor suggested I try circadin which basically just melatonin but in a slow release formulation that released the “ hormone” over 6-8 hours - it has given me many better nights of sleep - it is suggested for people over 50 ( do not know why ) and not for long time usage - so yes I am 68 and I don’t take it every day only when my anxiety tells me I will not get a good night sleep - my neurologist suggested that this could be a better solution to sleep instead of increasing the dose of my low 0.5 Ativan