呋喃硝胺又名呋硫硝胺、雷尼替丁(Ranitidine),是继西咪替丁之后又一新的H_2—受体拮抗剂,由于其分子结构中以一个呋喃环取代了原有的咪唑环而使其对细胞壁H_2—受体的作用更强,更具有特异性。本药由上海第六制药厂于1982年开始试制,经二年多的摸索及临床试验,于1985年2月15日在上海市 Furan nitramine also known as furosemide nitrofurazone, ranitidine (Ranitidine), is a new H2-receptor antagonist after cimetidine, due to its molecular structure with a furan ring to replace the original Imidazole ring to make it stronger and more specific to cell wall H2-receptor. The drug by the Shanghai Sixth Pharmaceutical Factory trial production in 1982, after more than two years of exploration and clinical trials, on February 15, 1985 in Shanghai