Etymology and distribution of 薬.

Kusuri 【薬】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Iwate-ken , Hokkaidou , Toukyou-to .

① Iwate-ken Shimohei-gun Iwaizumi-chou Birth of Kodomi Komoto. Iwate - ken Shimohei - gun Iwaizumi - chou There are distribution in small books.

② Okinawa-ken Yaeyama-gun Taketomi-chou Hakuma, Ehime-ken Matsuyama-shi Distributed in Nishigaki-cho.

Yaku 【薬】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

薬クスリ参照。