For moderate to severe pain, your doctor may prescribe stronger pain relievers also known as opioid pain medication, such as morphine, fentanyl, hydromorphone, oxycodone and codeine.

• 对于中度至重度疼痛，主治医生可能会开出更为强效的止痛药，也就是我们熟知的阿片类止痛药，如吗啡、芬太尼、氢吗啡酮、羟考酮和可待因。