鎮痛剤

1. Origins, structure, and basic meaning

• Structure: 鎮痛剤 combines 鎮痛, pain relief, with 剤, medicinal agent, and is read ちんつうざい.
• Basic usage: Taking the medicine appears in 鎮痛剤を飲む, while prescription status appears in 処方された鎮痛剤.

2. Common pitfalls and similar expressions

• Medicine type and added context
  • 鎮痛剤 itself names the type of medicine; phrases such as 医師に確認してから and 処方された separately supply the circumstances of use.
• Difference from 薬
  • 薬 broadly denotes medicine, while 鎮痛剤 specifically identifies medicine used for pain relief.