Question about children’s vs infant Advil?

👪💖

So the dosage for infant Advil over 24 lbs is 3ml. In children’s Advil the dosage over 24lbs is 6ml. Why the difference? This kinda scares me into giving my son children’s Advil, but it comes in a bigger bottle. He’s 19mos and weighs 25 lbs. if someone could explain this to me I’d feel so much better lol.

Thanks!