A spoonful of promethazine/​codeine syrup showing the characteristic purple color Typically, the base for lean is a solid prescription cold drugs, particularly cough syrup that contains both promethazine and codeine. Other preparations use codeine/guaifenasin, hydrocodone/chlorphenamine, hydrocodone/APAP, and hydrocodone/homatropine. Higher doses of codeine and promethazine can induce... https://hilaryo518nnt7.thebindingwiki.com/user