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.