I don't know why caffeine's suddenly got such a bad rep.

我不知道为什么咖啡因突然得了这么个坏名声。

HPLC method for determination of phenylephrine hydrochloride, paracetamol, caffeine anhydrous,salicylamide and brompheniramine maleate in Liufenkamin tablets was established.

建立了HPLC法测定柳酚咖敏片中盐去氧肾上腺素、对乙酰氨基酚、无水咖啡因、水杨酰胺、马来溴苯那敏的含量。

"Chocolate contains many substances that act as stimulants, such as theobromine, phenethylamine, and caffeine," Dr. Bryan Raudenbush from Wheeling Jesuit University in West Virginia.

西弗吉尼亚威林耶稣大学的布莱恩博士说：“巧克力内含有很多具有兴奋作用的物质，如可可碱、苯已基以及咖啡因。”