Class I (death/injury risk) is most urgent. Class II (reversible harm possible). Class III (low risk, unlikely harm).

As Congress and the Drug Enforcement Administration weigh whether marijuana should be rescheduled, public faith in the drug classification system continues to erode. Debate rages between those who ...

The Association of Racing Commissioners International has classified or reclassified 46 foreign substances and has listed the administration of Erythropoietin, or EPO, as a prohibited practice at the ...

The US Department of Health and Human Services has recommended lowering federal penalties and restrictions on marijuana by lowering its drug classification. HHS suggested that the Drug Enforcement ...

Scientists have identified a new anti-ageing drug class that works by acting on a key gut bacteria process, an advance that ...