How to make:
Typically, the base for lean is a strong prescription cold medicine, specifically cough syrup that contains both promethazine and codeine. Over-the-counter cold medicines that contain dextromethorphan as the active ingredient have also been used, as they can produce similar effects and eliminate the need for a doctor's visit.

To create a drinkable mixture, the cough syrup is combined with soft drinks, especially fruit-flavored drinks such as Sprite, Mountain Dew, or Fanta, and is typically served in a foam cup. A hard candy, usually a Jolly Rancher, may be added to give the mixture a sweeter flavor. Masking the undesired taste may impair judgement of the potency, which is a factor in overdosing.

Effects:
The physiological effects of lean on the user are to produce mild "euphoric side effects", which are accompanied by "motor-skill impairment, lethargy, drowsiness, and a dissociative feeling from all other parts of the body." It has been suggested that the super-sweet combination of soda, cough syrup, and Jolly Ranchers provides a flavor and mouthfeel, which stays on the tongue for an extended duration. This phenomenon is often appealing to first-time users. Lean is often used in combination with alcohol and/or other drugs.
𝓭𝓮_𝓷𝓾𝓴𝓮 𝓮𝓷𝓳𝓸𝔂𝓮𝓻