293910 Alkaloids of Opium and Their Derivatives, Salts Thereof
293921 Quinine and Its Salts
293929 Other Alkaloids of Cinchona and Their Derivatives, Salts Thereof
293930 Caffeine and Its Salts
293940 Ephedrines and Their Salts
293950 Theophylline and Aminophylline and Their Derivatives, Salts Thereof
293960 Alkaloids of Rye Ergot and Their Derivatives, Salts Thereof
293970 Nicotine and Its Salts
293990 Other Vegetable Alkaloids, Their Salts, Ethers, Esters, Other Derivatives
