>>76500708 (OP)5mg is not a microdose, but the highest dose you can safely take indefinitely
you only microdose (2.5mg) if you have terrible genes that somehow make the uncommon side effects flare up real bad on you, but you still want that vasodilation
the side effects eventually go away though, unless you have absolute subhuman genes
with that said, yes you can take safely 5mg daily for the rest of your life
they're only really good if you do lots of cardio though, that's where the vasodilation shine, taking them for "le pump" is a meme
i personally took 10mg a day for a while, but didn't notice anything substantially different, so i am back to the sweetspot 5mg a day