Tanacetum parthenium, commonly known as feverfew, is a medicinal herb that has been used for centuries to treat various ailments. It belongs to the Asteraceae family and is native to Europe but can now be found growing in many parts of the world. There are several synonyms for Tanacetum parthenium, including Chrysanthemum parthenium, Matricaria parthenium, and Pyrethrum parthenium. These synonyms reflect the plant's various botanical classifications over the years. Feverfew is popularly used as a natural remedy for migraines, arthritis, and menstrual cramps. It contains various compounds that are believed to have anti-inflammatory, pain-relieving, and antioxidant properties. Despite its potential health benefits, feverfew should be used with caution as it may cause side effects such as nausea and vomiting.