dex
noun
1
Dexedrine™, a central nervous system stimulant US, 1961.
2
dextromethorphan (DXM), an active ingredient in non-prescription cold and cough medication, often abused for non-medicinal purposes US, 2003.
3
MDMA, the recreational drug best known as ecstasy. From DECADENCE (MDMA) UK, 2003
⇨ See: ECSTASY