There is not enough information to determine the safety of mugwort. If you experience any unexplained side effects while taking mugwort, you should stop taking it immediately and seek medical advice.
There have been reports of respiratory and skin allergic responses. If you experience breathing problems, wheezing, shortness of breath, asthma, skin rash, hives, eczema, or other respiratory or skin reactions, stop using mugwort and contact your health care provider. Based on traditional use and expert opinion, large doses of mugwort may cause abortion, nausea, vomiting, or damage to the nervous system.
Mugwort may increase the risk of bleeding and may interact with certain medications that can increase this risk, including:
- acetylsalicylic acid (ASA)
- anticoagulant medications (e.g., warfarin, heparin)
- anti-platelet medications (e.g., clopidogrel)
- nonsteroidal anti-inflammatory drugs (NSAIDs; e.g., ibuprofen, naproxen)
Do not use mugwort if you are:
- allergic to the Asteraceae or Compositae (daisy) family of plants, which includes ragweed, chrysanthemums, marigolds, daisies, and chamomile
- allergic to birch, cabbage, grass, hazelnut, olive pollen, honey, mustard, royal jelly, sweet bell pepper pollen, tobacco, and sunflower
- allergic to kiwi, peach, mango, apple, celery, and carrots
- under 18 years of age
Consult a health care provider if any of the symptoms or conditions being treated with mugwort persist or worsen.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.