pent·ox·i·fyl·line /ˌpɛnˌtɑkˈsɪfəˌlɪn/ 名詞
  pentoxifylline
       n : a drug (trade name Trental) used to treat claudication;
           believed to increase the flexibility of red blood cells
           so they can flow through the blood vessels to the legs
           and feet [syn: Trental]