Was Harry drugged?

[Meredith]

No: HPFGUIDX 98464

In OotP, there is a passage where Harry is trying to write his 
potions essay, but falls asleep as he's reading about scurvy-grass, 
lovage and sneezewort... 

"These plantes are moste efficacious in the inflaming of the braine, 
and are therefore much used in Confusing and Befuddlement Draughts, 
where the wizard is desirous of producing hot-headedness and 
recklessness..." (apologies, I don't have the exact page or chapter 
right now)

Hot-headed and reckless... doesn't this sound like angsty!Harry? 
And, for that matter, like Sirius? Who could have been making and/or 
slipping Harry a potion? And why wait until the 5th year? There's no 
saying how long the potion lasts, so my guess goes to Kreature, or 
Umbridge. 

I know how everyone feels about Neville, but he IS awfully good at 
Herbology and he was at St. Mungo's the day Broderick Bode received 
the Devil's Snare. Maybe some ESE!Lupin fans will even take a crack 
at this?

~Luckie