What does similar mean?

This is where Brandon Keim starts in a post on a chemists ability to churn out legal analogues of illegal compounds.

The question is a good one for medicinal chemists, policy makers, and emergency room clinicians, but all for different reasons.

Chemists Outrun Laws in War on Synthetic Drugs | Wired Science | Wired.com.

I think this will make a good first lecture for the my toxicology students, framing the unusual mix of stakeholders when we discuss abused drugs.