Maybe by FDA-type standards, 4x is "close", but to me, I would think it absurd to take 4x the recommended dose of something unless directed to by a doctor.

I was recently prescribed 800mg ibuprofen for an injury, where 200mg is the standard OTC dose, and I even questioned that.

you'd be surprised how casual some people are with doses. my old grandma had a big bag of medication she had collected over the years and occasionally she'd sit down and pick a couple like smarties and gulp them down.

when my dad decided to step in, he took her to a doctor to get a full review and confiscate the bag.