"It will make me drowsy and sluggish," Remus argued, shaking his head. He was tired enough. He'd rather the slow ebb of the pain to not being able to wake if he needed to. Who knew who the castle would bring back next or where they would appear? They couldn't lower their guard too much when there was a chance Hogwarts would drop someone like Bellatrix Lestrange into your bedroom.
Taking the water from Sirius, he drank a few sips, letting the cool comfort slide slowly down his abused throat with a sigh. "If you 'liberated it', in truth, put it back. We can't afford to be wasting those kind of stores. We may need them in the future and we don't know how far the ingredients we have access to now may stretch." It was hard to be mad about the two of them filching potions for him, though, when it was obvious it had been done because they cared about him.
"Sorry, Prongs." Remus laughed softly, though it came out sounding more like a dry cough, catching on the roughness in his throat. "Pitch is just a patchy grass field to the wolf."