In writing this week's entries I started with the entry for the yagen, an object I had been seeing in anime and manga for years but had not found a good secondary source describing it.
Then I needed to include one for kusuri as yagen are used to make them, of course that meant I needed an entry for kampō since kusuri originated in kampō. This also explains why I have two entries under the letter "K" as I usually try to avoid doing so since it is easier to write entries under three different letters.
So here you are.
kampō (Chinese Medicine) 漢方
kusuri (drugs) 薬
yagen やげん or 薬研
I'll try to make my next posting on the 14 and have a Valentine's Day related set.