Feverfew (Tanacetum parthenium) is clinically studied for migraine prevention—especially "cold-type" migraines with vascular constriction. Chew 3 fresh leaves daily or take 100 mg freeze-dried capsules. At migraine onset, 5–10 drops tincture every 30 minutes. It inhibits serotonin release, reduces nausea/vomiting, and may lower blood pressure. Also helps arthritis, menstrual regulation, and digestive upset. Caution: 18% report mouth ulcers with long-term use. Avoid in pregnancy.
Dry flowers in single layers at 95°F; store airtight. Use within 6 months for best potency.
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