The science and activities relating to the detection, assessment, understanding and prevention of adverse effects or any other drug-related problem.

药物警戒指的是有关药物不良作用或任何其他药物相关问题的发现，评估，理解及预防的科学与活动。

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"Medication addiction or drug dependency would be a reason why the United States a serious problem in todays society, which is closely related to the U. S." drug culture.

吃药成瘾或药物依赖之所以会成为当今美国的一个严重的社会问题，这与美国的“药品文化”密切相关。

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It says that while drug use and drug problems have declined in the UK in recent years, there are still about 2, 000 drug-related deaths each year and 380, 000 problem drug users.

BBC: Possessing small amount of drugs 'should not be crime'

Although illicit drug use has been declining in the UK, long-term problem drug use and drug-related deaths are not decreasing, says the British Medical Association.

BBC: Doctors say UK drug policy should focus more on health

Also, Belize has a problem with violent crime, much of it drug-related, and the trafficking of narcotics to the US. In 2011 Belize was added to a US blacklist of countries considered to be major producers or transit routes for illegal drugs.

BBC: Belize country profile