nafenopin

例句：

1. 1. This medication is effective in treating chronic pain.
   这种药物对慢性疼痛有效。
2. 2. The doctor prescribed nafenopin for my headaches.
   医生给我开了纳芬泊恩来治疗我的头痛。
3. 3.After taking the medication, I felt much better and was able to return to my normal activities.
   服用了这种药物后，我感觉好多了，能够恢复正常活动。