1. A white crystalline compound formerly used as a pain reliever and fever reducer; now largely replaced by safer alternatives.
Usage: dated; pharmaceutical; also called phenazone

Examples

• Antipyrine was a popular analgesic in the early 20th century.
• The doctor prescribed antipyrine to reduce the patient's fever.
• Antipyrine has been largely superseded by modern pain medications.
• Historical medical records show antipyrine was widely used before aspirin became common.
• The chemical structure of antipyrine made it effective but also prone to side effects.