http://www.citynews.ca/2016/05/13/sip-something-else-police-issue-purple-drank-warning/
The name comes from the colour of the cough syrup, but it’s known by many other monikers including Texas tea, and, simply, drank.
Police warn it is “referenced frequently in some popular music and has now become increasingly popular among youth.”
Codeine, police said, is an opioid that can produce relaxation and euphoria when consumed in sufficient quantities. Promethazine is an antihistamine that also acts as a sedative.
The danger is that there is a risk of a fatal overdose due to the effect of codeine, which can slow or stop the heart and lungs