procyclidine

例句：

1. 1. Procyclidine is a powerful analgesic that can be used to treat chronic pain.
   曲马多是一种强效的镇痛药，可用于治疗慢性疼痛。
2. 2. Procyclidine has been shown to have anti-inflammatory properties.
   研究表明，曲马多具有抗炎作用。
3. 3. Procyclidine is often used as an alternative to opioids for patients with chronic pain.
   曲马多常被用作慢性疼痛患者的替代阿片类药物。