毒 means poison and is a JLPT N2 kanji. It has 8 strokes and uses the mother / prohibition radical (毋).
Stroke order · 8 strokes
On'yomi (音読み)
ドク
Kun'yomi (訓読み)
—
Radical
毋 · mother / prohibition
Strokes
8
How to remember 毒
Beneath sprouting grass is not 'mother' (毋) but a prohibition — eating it is dangerous. 毒 (poison), 中毒 — food poisoning when it's food, addiction when it's your phone.