To make under 6yo Calpol as effective as 6+ Calpol for an 8yo, do I just double the dose?

[scampadoodle]

Am packing for holiday & don't want to take 2 different bottles of Calpol.

[Tortoise]

That is what i do.
Also planning to only take one bottle on holiday.

[scampadoodle]

Thanks Tortoise!