LDN for Underactive Pituitary?

I guess you have all heard of LDN treatment(ldn treatment - Google Search).

I spoke to a fitness instructor who performed steroid cycle. His testosterone and LH were suppressed similar to mine. He struggled for a few months to fix them with no success.

He told me he recovered it with 1 month LDN. I guess the normal dose 4.5mg per day.

Do you think this is safe and worth trying? Everywhere it is said that LDN is totally safe with no side effects cause of the low dose, but I’m not so convinced. Low or not this is a fucking powerful drug