This prescription cough syrup combines antihistaminic and opioid actions to relieve cough and allergy symptoms in adults. It contains 6.25 mg promethazine and 10 mg codeine per 5 mL of flavored, light alcoholic syrup. Strict limitations apply due to serious risks (respiratory depression, misuse, especially in vulnerable populations). Use short-term only, follow accurate dosing, monitor interactions, and reassess prolonged symptoms.