薬 means medicine and is a JLPT N3 kanji. It has 16 strokes and uses the grass / plants radical (艹).
Stroke order · 16 strokes
On'yomi (音読み)
ヤク
Kun'yomi (訓読み)
くすり
Radical
艹 · grass / plants
Strokes
16
How to remember 薬
The grass (艹) that fills the mind with joy (楽) when eaten — medicine. 薬 (medicine), 薬局 (pharmacy) — in Japan, much 薬 isn't available without a doctor's prescription.