What are the side effects of Chuanxiong?

Ligusticum chuanxiong is a commonly used traditional Chinese herb, known for its main effects of warming the body and relieving exterior symptoms, promoting blood circulation to remove blood stasis, astringing and relieving pain, as well as clearing heat and detoxifying. However, it also has some side effects that should be noted and avoided. 1. Ligusticum chuanxiong has certain toxicity. If taken in excessive amounts, it may cause symptoms such as nausea, vomiting, dizziness, headache, and diarrhea. In severe cases, it could lead to decreased blood pressure, increased heart rate, and mental tension. 2. Due to its warming nature, Ligusticum chuanxiong should be used with caution in individuals with a naturally hot constitution or those suffering from conditions such as hypertension or heart disease, as it may trigger adverse reactions like nausea and dizziness, or even more serious complications. 3. Ligusticum chuanxiong may interact with other medications. When taken concurrently with other drugs, especially anticoagulants, it may result in drug interactions and potentially cause adverse reactions.