Can cinnamon twig (Guizhi) cause an increased heart rate?

Guizhi (Ramulus Cinnamomi) is a traditional Chinese medicine. Under normal circumstances, Guizhi does not cause an increased heart rate; however, if taken in excessive doses, it may lead to palpitations. The detailed analysis is as follows:

1. No effect

Guizhi is the young branch of Cinnamomum cassia, a plant from the Lauraceae family. It has effects including promoting sweating and relaxing muscles, warming and unblocking meridians, assisting yang and transforming qi, and calming rebellious qi. It is used to treat conditions such as wind-cold感冒, cold-induced abdominal pain, blood stasis with menstrual obstruction, joint pain due to bi syndrome, phlegm-drink disorders, edema, palpitations, and galloping piglet syndrome (ben tun). Generally speaking, when taken short-term as directed by a physician, this herb does not cause an increased heart rate.

2. Possible effect

Guizhi has properties that dilate blood vessels and enhance myocardial contractility, which may lead to an accelerated heartbeat. Especially with high doses or long-term use, Guizhi may affect heart rhythm, potentially causing tachycardia or arrhythmias. If symptoms are mild, patients may continue medication under a doctor’s supervision while closely monitoring their physical condition. If palpitations occur, medication should be discontinued and alternative treatments sought under medical guidance. Additionally, drinking more water can help promote drug excretion and reduce bodily harm. Self-medication without supervision should be avoided.

In summary, whether Guizhi causes an increased heart rate depends on individual circumstances. If any adverse reactions occur after taking the medication, it is recommended to seek timely medical attention at a qualified healthcare facility.