noun
one's usual medicine; medicine one always carries
Refers to medicine that a person habitually takes or keeps on hand, such as a daily prescription or a personal remedy.
旅行のときは必ず持薬を持っていく。
I always take my usual medicine with me when I travel.
彼は毎日、食後に持薬を飲んでいる。
He takes his regular medicine every day after meals.