Narcotic Antitussives 1. Pharmacological effects suppression of cough (1/4 of morphine) analgesia(1/7-1/10 of morphine) 2. Clinical uses Cough without sputum 3. Adverse effects Respiratory depression(at larger doses) A Addiction Contraindicated in n patients with thick sputum1. Pharmacological effects suppression of cough (1/4 of morphine) analgesia (1/7~1/10 of morphine) 2. Clinical uses Cough without sputum 3. Adverse effects Respiratory depression (at larger doses) Addiction Contraindicated in patients with thick sputum Narcotic Antitussives