What is a scheduled drug?

A controlled drug whose use and distribution is tightly controlled because of its potential risk. The FDA rates these drugs in order of their abuse risk and places them in schedules 1 to 5. Schedule 1 drugs present the most risk with potential severe psychological and physical dependence, examples include heroin, LSD, MDMA. Schedule 5 eg is a cough medication with less than 200mg of codeine.

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