Around fifteen minutes, right? I don't feel anything yet.

[ Even if there's any hint of heat, it's too subtle to pick up. Looks like they'll be in for a wait, so he might as well settle in. As comfortable as if the place were his own, he slouches into the couch, crossing an ankle over his knee, and throwing an arm casually over the back. While they might have to wait, there's no shortage of things to discuss, and he speaks to the first point on his mind: ]

And if it works, how long will the medicine effect take to go away?

[ Seems like he should know, if "trading cards" is on the table. ]