A dose of a narcotic drug.

他服了一剂药。

youdao

When defining what a drug is the participants will most commonly focus on illegal or narcotic drugs. It is necessary for the facilitator lead them to broaden their definition.

对于毒品的定义，学员一般都会想到非法或是麻醉类的毒品，所以主持人就需要引导学员去扩展定义范围。

youdao

Results: the abuse of non-narcotic analgesics in most cases proved to be iatrogenic, leading to the drug dependence, which a great attention was being paid to in the community.

结果：非麻醉性镇痛药的滥用大多因医源性滥用所致，其导致的依赖性已日益受到人们的重视。

youdao

These psychiatrists would like to get the drug off the FDA's list as schedule one drug, which means that it's a banned narcotic so they could use it as in controlled counseling.

CNN: O'Connor: Kids confused over safety of Ecstasy