Recreational use of dextromethorphan
Dextromethorphan, or DXM, a common active ingredient found in many over-the-counter cough suppressant cold medicines, is used as a recreational drug and entheogen for its dissociative effects. It has almost no psychoactive effects at medically recommended doses. However, dextromethorphan has powerful dissociative properties when administered in doses well above those considered therapeutic for cough suppression. Recreational use of DXM is sometimes referred to in slang form as "robo-tripping", whose prefix derives from the Robitussin brand name, or "Triple Cs", which derives from the Coricidin brand whose tablets are printed with "CC+C" for "Coricidin Cough and Cold". However, this brand presents additional danger when used at recreational doses due to the presence of chlorpheniramine.
Cough medicine containing dextromethorphan in gel cap form
Lean or purple drank is a polysubstance drink used as a recreational drug. It is prepared by mixing prescription-grade cough or cold syrup containing an opioid drug and an anti-histamine drug with a soft drink and sometimes hard candy. The beverage originated in Houston as early as the 1960s and is popular in hip hop culture, especially within the Southern United States. Codeine/promethazine syrup is usually used to make lean, but other syrups are used.
Lean (drug)
Ingredients for creating lean, including codeine-promethazine cough syrup, Jolly Rancher candies, and Sprite. Note the label on the bottled syrup, printed with instructions on how to prepare the lean. Some of the syrup has been decanted into a plastic container.
A spoonful of promethazine/​codeine syrup showing the characteristic purple color
In 2019, rapper Future publicly spoke about quitting lean after learning about how his music influenced teenagers to try the drug.