Does Lemsip kick in so quickly?

She had to come back into the sitting area as the HM's got a lamenate (to do with the prize for the best slave, Kate won) they are just waiting for her to come out of the DR

Didn't you know, Lemsip's magic has an instant effect even from opening the packet...even before that, when you buy it...no, earlier still, when you decide to leave the house to go an buy it! ...