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Avoid using feverfew together with other herbal/health supplements that can also affect blood-clotting. This includes angelica (dong quai), capsicum, clove, danshen, garlic, ginger, ginkgo, horse chestnut, panax ginseng, poplar, red clover, turmeric, and willow.
Feverfew side effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Although not all side effects are known, feverfew is thought to be likely safe when taken for a short period of time (up to 4 months).
Common side effects may include:
- • heartburn, upset stomach, nausea, vomiting;
- • gas, bloating, diarrhea, constipation;
- • pounding heartbeats;
- • headache, dizziness, feeling nervous;
- • sleep problems (insomnia), tired feeling;
- • weight gain;
- • joint stiffness;
- • rash; or
- • changes in your menstrual periods.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
What other drugs will affect feverfew?
Do not take feverfew without medical advice if you are using a medication to treat any of the following conditions:
- • any type of infection (including HIV, malaria, or tuberculosis);
- • anxiety or depression;
- • asthma or allergies;
- • cancer;
- • erectile dysfunction;
- • heartburn or gastroesophageal reflux disease (GERD);
- • high blood pressure, high cholesterol, or a heart condition;
- • migraine headaches;
- • psoriasis, rheumatoid arthritis, or other autoimmune disorders;
- • a psychiatric disorder; or
- • seizures. *
