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

Fenetylline "inn" and its salts

Theophylline and aminophylline "theophyllineethylenediamine" and their derivatives, and salts thereof (excl. fenetylline "inn" and its salts)

Fenetylline (inn) and its salts