Synonyms: AC1L4X37;Caffeine mixture with phenacetin, propyphenazone and pyrithyldione;3,3-diethyl-1H-pyridine-2,4-dione; 1,5-dimethyl-2-phenyl-4-propan-2-ylpyrazol-3-one; N-(4-ethoxyphenyl)acetamide; 1,3,7-trimethylpurine-2,6-dione;Acetamide, N-(4-ethoxyphenyl)-, mixt. with 3,3-diethyl-2,4(1H,3H)-pyridinedione, 1,2-dihydro-1,5-dimethyl-4-(1-methylethyl)-2-phenyl-3H-pyrazol-3-one and 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione