YOU SAID:
I need to drink my medication
INTO JAPANESE
私は私の薬を飲む必要があります。
BACK INTO ENGLISH
Should I take my medicine.
INTO JAPANESE
私の薬を取る必要があります。
BACK INTO ENGLISH
You need to take my medicine.
INTO JAPANESE
私の薬を服用する必要があります。
BACK INTO ENGLISH
You need to take my medicine.
That didn't even make that much sense in English.