地道翻譯：
1.大多數藥品都是被身體視為異物的化學物質,因此,不同程度地具有毒性
--Most of drugs are viewed as chemical substances of foreign matter by our body,thus they are toxic to some extent.
2.There is considerable controversy as to the value of routine toxicology testing, as many differences between species, especially between man and rat, mouse and dog, have been reported.
--關於常規毒理學試驗的價值存在很大爭議，因為物種間的差異，尤其是人鼠間差異以及貓狗間差異已經有過相關報道。
3.Caffeine may relieve hypertensive headache and reduce cerebral blood, resulting from cerebrovascular contraction.
--咖啡因可緩解高血壓引起的頭痛以及減少因腦血管收縮引起的腦部血液流量。