Lefetamine (Santenol) is a drug which is a stimulant and also an analgesic with effects comparable to codeine.

[7] In a small study in 1994, it was compared to clonidine and buprenorphine in the detoxification of methadone patients and found to be inferior to both of them.

Possession without legal authority can result in maximum 3 years imprisonment.

[10] Some related pyrrylphenylethanones had analgesic activity comparable to morphine.

[11] Some pyrrole analogues were reported to have analgesic effects comparable to lefetamine and being devoid of neurotoxic properties.