The folks at Warhammer Online have posted a detailed look at the game's tradeskills, including Apothecary, Cultivation, and Butchering.
"Oooh, that's a nice one! Clear as crystal, and not a bubble to be seen in it! Where'd you say these came from, again? Tilea? How impressive! Fine, then, I'll take the lot of them. Best not be any broken ones! The last lot was half shards by the time it was delivered!"
-- Gertrude Weiss, Apothecary (overheard in Altdorf's market)
Apothecary is a crafting production skill that allows you to create potions that apply various temporary augmentations to your characters. A secondary feature in Apothecary is the crafting of dyes. By finding a pigment and grinding it down with a mortar and pestle, anyone can create a substance which is capable of dyeing cloth, leather, or even metal! Whether a Swordmaster or a Witch Elf, all players can benefit from the abundant selection of concoctions available.
The central item of the Apothecary craft is the vial. Vials are rated depending on their quality, which ranges from Apprentice to Master Apothecary. A vial provides the necessary container for the completed potion. Any merchant or vendor in the Age of Reckoning would quickly be put out of business without an unlimited supply of such vials.
Read more here.