Board Thread:Theories and Speculation/@comment-30598131-20161125182230/@comment-2006510-20161126212639

Well, remember when during one of Toneri's attacks, Hinata fell down the side of a building? Any decent ninja would've used chakra to slide down it, stick to it, or jump off it - Hinata couldn't and was only saved because the scarf snagged on something, because her chakra was drained

So it did so in addition to the control/put-to-sleep, as it did before Hinata met Hamura. After that, it still drained her chakra with it's effects, but not Hamura's chakra (which she used on the Tenseigan Energy Vessel, and to help Naruto in his battle with Toneri)