单词：ranitidine 

名词

• 
  [1.n.ranitidine] (同义词:[ranitidine]  [Zantac]  )
• 
  注释列句：a histamine blocker and antacid (trade name Zantac) used to treat peptic ulcers and gastritis and esophageal reflux
• 上位词 -> [histamine_blocker]  [medicine( n. 药, 医学, 内科学, 内服药 vt. 给...用药 )]  [drug( n. 药, 麻药, 麻醉药, 滞销货 vi. <俗> 吸毒 vt. 使服毒品, 毒化 )]  [agent( n. 代理(商) )]  [causal_agent]  [physical_entity]  [entity( n. 实体 )]