narcotic|narcotics

热水澡的温暖有一种麻醉般的效果，让他感到昏昏欲睡且放松。

The warmth of the hot bath had a ___narcotic effect, making him feel drowsy and relaxed.

警方在突击行动中查获了大量毒品。

The police confiscated a large quantity of ___narcotics during the raid.

手术后，医生给他开了一些麻醉性镇痛药来缓解疼痛。

After the surgery, the doctor prescribed some ___narcotics to relieve his pain.