General mixes of herbs and home remedies can be found all over the Town -- in random buildings, in the general store, etc. They're what you would expect from home remedies, mostly.

And there is an apothecary-esque building in the Town! It's been abandoned like the rest and is pretty dusty, but Guren has been making use of it, so its definitely around to be poked around in. There's a greater collection of random brews and remedies in there.