Where do you get 50mg melatonin? Do you take 5 pills of 10mgs? I haven't seen anything higher than 10. Or are you saying that 50mg can be prescribed? I've read that high doses of melatonin actually keep you awake. I take 0.6, and I sleep great.
5 - 10mg gummies. If less works well, obviously take less.
In my life, not sleeping well has a greater negative impact to my health than taking melatonin in doses higher than recommended.