👉 Antipyrine is a class of drugs that act as potent inhibitors of the 5-hydroxytryptamine (5-HT) receptor. Antipyretics, these drugs are known for their ability to reduce fever and pain in several conditions including headache, muscle spasm, and post-surgical pain. They can be used to treat a variety of medical conditions such as neuropathic pain, inflammatory bowel disease, and Parkinson's disease.