Ukrainian Параксантин Cited by user Anastasiia Bratasiuk on 11 Dec 2022 Параксантин, або 1,7-диметилксантин, є диметиловим похідним ксантину, структурно спорідненим кофеїну.
English Caffeine Cited by user Citation bot on 24 Aug 2021 Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug.
English Adenosine receptor antagonist Cited by user Citation bot on 16 May 2021 An adenosine receptor antagonist is a drug which acts as an antagonist of one or more of the adenosine receptors.
English Caffeine Cited by user Sizeofint on 09 Nov 2015 Caffeine is classified by the Food and Drug Administration as "generally recognized as safe" (GRAS).