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What are the side effects of senna leaves?

Feb 13, 2025 Source: Cainiu Health
Dr. Zhang Xiuhong
Introduction
Under normal circumstances, as a traditional Chinese herbal medicine, senna leaf may cause side effects such as gastrointestinal irritation, allergic reactions, worsening of constipation, abnormal brain function, and blood pressure changes. It is recommended to consult a qualified physician or pharmacist before using senna leaf, follow medical instructions strictly, and avoid excessive or long-term use to ensure safe medication administration.

Generally, as a traditional Chinese herbal medicine, senna leaf may cause side effects such as gastrointestinal irritation, allergic reactions, worsening constipation, abnormal brain function, and blood pressure fluctuations. A detailed analysis is as follows:

1. Gastrointestinal Irritation

Senna leaf strongly irritates the gastrointestinal mucosa and may cause gastrointestinal discomfort symptoms such as nausea, vomiting, and abdominal pain. Therefore, individuals with weak spleen and stomach should use senna leaf cautiously.

2. Allergic Reaction

Patients with allergic constitutions may experience allergic reactions after consuming senna leaf, presenting symptoms such as rashes, itching, and swelling. If an allergic reaction occurs, discontinue use immediately and seek medical attention.

3. Worsening Constipation

Senna leaf has a laxative effect, but long-term use can reduce the sensitivity of intestinal nerve sensory cells, weakening the intestinal response to fecal stimulation and worsening constipation.

4. Abnormal Brain Function

Senna leaf has a stimulating effect on the cerebral cortex, potentially causing temporary brain function abnormalities. Long-term or excessive use of senna leaf may lead to symptoms resembling epilepsy, such as confusion and foaming at the mouth.

5. Blood Pressure Fluctuations

Senna leaf can affect the cardiovascular system. Elderly patients may experience blood pressure fluctuations after taking senna leaf, including symptoms such as headache, frequent vomiting, sharp increases or decreases in blood pressure.

It is recommended to consult a qualified physician or pharmacist before using senna leaf, strictly follow medical instructions, and avoid excessive or long-term use to ensure safe medication use. Additionally, maintaining healthy lifestyle habits, including a balanced diet and moderate exercise, can enhance physical resistance and reduce the occurrence of drug side effects.

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