[Pharmacological studies of basic theophylline derivatives. I. Effects on cardiovascular system].
D000818:Animals; D001001:Anura; D002319:Cardiovascular System / Q000187:drug effects*; D004285:Dogs; D005260:Female; D006321:Heart / Q000187:drug effects; D008297:Male; D012039:Regional Blood Flow / Q000187:drug effects; D013806:Theophylline / Q000138:chemical synthesis / Q000494:pharmacology*
D013806:Theophylline