Senna is a legume narrow-leaved or sharp-leaved senna dried leaves, there are diarrhea and stagnation, water, swelling, antibacterial and anti-inflammatory, antispasmodic and choleretic effect.

Elderly patients taking senna can appear after headache and frequent vomiting, blood pressure rose or fell dramatically, or even shock, stop taking and symptomatic treatment can be restored.

Long-term use of senna constipation patients will be withdrawal symptoms, manifested as insomnia, anxiety, general discomfort, even pain or ants, dilated pupils, hot and flushed, anorexia, fever, yawning, breathing faster, increased blood pressure, weight loss and so on.

Long-term use, patients show severe pain in the upper abdomen, vomiting coffee-colored liquid and black stools.

I hope it helps you