“氨大芬”是白色结晶性粉末。其化学结构为4,4′-二乙氨基乙氧基-α,β-二乙基二苯乙烷的二盐酸盐。经过各种动物,离体心脏及临床试验的结果,都肯定了“氨大芬”是一种有效的冠状血管扩张剂。在动物试验及对离体心脏试验中,当剂量各为2毫克/仟克及1微克时,就开始使冠状血管有扩张作用,对外周器宫脉管的扩张性能却小得多。“氨大芬”的毒性极低。 “Ammonium Dafen” is a white crystalline powder. Its chemical structure is 4,4’-diethylaminoethoxy-α, β-diethyl-diphenylethane dihydrochloride. After a variety of animals, isolated heart and clinical trial results, have affirmed the “ammonia Dafen” is a valid coronary vasodilator. In animal experiments and in isolated heart tests, dilatation of the coronary vessels began at dosing of 2 mg / kg and 1 μg respectively, but dilatation of the peripheral uterine vessels was much smaller. “Adenyl” toxicity is very low.