Severus clucked his tongue in disapproval. Of course one shouldn't mix Muggle medication with any important potion. The idiot ought to have told the Potions master of his allergies if she were as capable as everyone claims.
But the real news was his companion's other rather unique ability.
"I assure you, I did no research specific to her ability on your mother," he said sardonically. "I was happy to get her through her N.E.W.T. without serious injury. I suspect it's the loose nature of her joints - as you elude to here - that makes her a bit less than graceful, but it did put her in some danger around boiling cauldrons. There were several near-misses.
"I was not aware that you had the ability as well. My understanding is that you can form into anything that is mostly human, but not animal, is that correct?" If he could become a wolf before the moon actually rose, it would, presumably, vastly relieve the agony of the change.
He scratched some notes on his parchment about the disorientation, but he suspected that was probably caused by the sensory overload Lupin described and not something he'd readily be able to treat.