回复：查了，是处方药。

在美国没法每到这个药。在美国这药也很贵。看看Drugstore（必须有处方）网上列的价格，也不便宜，用量每天一粒：

Tarceva - 150mg Tablets
Quantity Our Price
30 tablets $3,965.25 - save 10% ($422.77)
90 tablets $11,645.13 - save 12% ($1,518.93)
100 tablets $12,939.03 - save 12% ($1,687.71)
120 tablets $15,526.84 - save 12% ($2,025.24)
150 tablets $19,408.54 - save 12% ($2,531.57)
180 tablets $23,290.25 - save 12% ($3,037.88)