Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives

Alkaloids of cinchona and their derivatives; salts thereof

Alkaloids of ephedra and their derivatives; salts thereof

Alkaloids of opium and their derivatives; salts thereof

Alkaloids of rye ergot and their derivatives; salts thereof

Theophylline and aminophylline (theophyllineethylenediamine) and their derivatives; salts thereof