Cabbage, Chinese Chomping - Calming Draught - caterpillars - cleaning solutions, magical - cockroaches - Concentration Capsules - Confusing Concoction - Confusing & Befuddlement Draught - cough potion - crocodile parts
Calms emotional turmoil.
Cleaning and polishing is usually accomplished with magical means, including various potions.
In preparation for the visit by the delegations from Durmstrang and Beauxbatons, the castle was spiffed up. Armour was polished and oiled so it didn't squeak when it moved. Some of the more dingy paintings were scrubbed so that their subjects sat with their faces pink from the effects (GF15)
A course of these is recommended to those who score Dreadful on the W.O.M.B.A.T test (JKR-W2).
Effect is to cause confusion.
Effect similar to that of Confusing Concoction.
Medical magic: unknown, but presumably treats a cough.