They use opium as a sedative, rather than as a narcotic.

他们把鸦片作为镇静剂，而不是作为麻醉剂。

《柯林斯英汉双解大词典》

This is a narcotic substance.

这是一种麻醉品。

youdao

He took a narcotic drink.

他喝了带麻药的饮料。

youdao

Locals joke that Yemeni trees are actually blue and red, the color of the plastic bags that you get when you buy qat, a mildly narcotic leaf, and the Yemeni national past time.

VOA: standard.2010.04.01

Hydrocodone is classified as a narcotic, and prescribed to relieve moderate to severe pain.

WSJ: Bills DE Williams fails to mediate ring dispute

To dole our relief in this way is to administer a narcotic, a subtle destroyer of the human spirit.

FORBES: Wonderful Wealth

Zogenix's painkiller Zohydro is a single-entity product containing hydrocodone -- a narcotic painkiller.

MSN: FDA staff says Zogenix painkiller has abuse risks