약 먹고

take medicine and

→ 약
phrase Uncommon #11,223
take medicine and 약 먹다 means “to take medicine.” The ending 고 connects it to what follows, often indicating a sequence of actions.
KO: 약 먹고 푹 쉬세요.
EN: Take your medicine and get some rest.

약 먹고 말 이야

After I take my medicine, I mean.

— 아바타: 물의 길 (2022)

약 먹고 잘 거 니까 깨우지 마

I'm going to take my medicine and go to sleep, so don't wake me up.

— 히든 (2005)

약 먹고 죽을 것 같아요

I feel like I'm going to die after taking the medicine.

— 이키루 (1952)