Lean is not this. Lean is cough syrup containing codeine and promethazine, not cough syrup containing dextromethorphan.

DXM is NOT lean.

Lean is codeine syrup, a pain killer.

DXM is totally different. Just because they are both used for treating cough doesn’t mean their pathways are the same.

lean aka purple drank — https://en.wikipedia.org/wiki/Lean_(drug)