Wartcap Powder -
Wit-Sharpening Potion -
wolfsbane -
Wolfsbane Potion -
wormwood -
wound-cleaning potion
Substance which causes the skin of a person who touches it to form a thick hard crust
A snuffbox in the cabinet in the drawing room of number twelve, Grimmauld Place had Wartcap Powder in it, as evidenced by the reaction of Sirius' hand to the box when he picked it up (OP6).
c.f. BULBADOX POWDER.
ingredients: ground scarab beetle, cut up ginger root, armadillo bile
Effect is presumably to make a person think more clearly.
The fourth year Potions class was making this shortly after the second task (GF27)
Another name for aconite (see).
Effects: While this potion doesn't cure lycanthropy, it does prevent the extremely dangerous dementia which would otherwise accompany the transformation from human into werewolf.
A fairly recent invention, very difficult to brew. Snape makes it for Lupin (PA18) (OP22)
Invented by Marcus Belby's uncle Damocles, who received the Order of Merlin (HBP7)
Used in Draught of Living Death. Interesting that this traditional symbol of bitterness figured prominently in the first question Snape ever set Harry in Potions (PS8).
Medical magic: used on cuts and other open wounds.
Used to clean out Harry's wounds from his bout with the Horntail in the first task (purple, smokes and stings) (GF20)