Buy Hi-Tech Lean” is a colloquial term referring to a specific brand of prescription-strength antitussive (cough suppressant) syrup manufactured by Hi-Tech Pharmacal Co., Inc. (now a subsidiary of Akorn Pharmaceuticals). Medically, it is a combination of Promethazine Hydrochloride and Codeine Phosphate. While its clinical purpose is the symptomatic relief of upper respiratory conditions, it has gained significant notoriety in popular culture as a primary ingredient in the recreational concoction known as “Lean,” “Purple Drank,” or “Sizzurp.”
Pharmaceutical Composition and Clinical Indications
The formulation produced by Hi-Tech Pharmacal is a Schedule V controlled substance in the United States, reflecting its potential for abuse and dependency.
Active Ingredients
The syrup contains two primary active pharmacological agents:
- Promethazine Hydrochloride (C17H20N2S⋅HCl): A phenothiazine derivative that acts as a first-generation H1 receptor antagonist (antihistamine). It possesses sedative, antiemetic, and anticholinergic properties.
- Codeine Phosphate (C18H21NO3⋅H3PO4⋅12H2O): A benzylisoquinoline alkaloid found in opium, which serves as an opioid analgesic and antitussive. It works by depressing the cough reflex in the medulla oblongata.










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