What are the effects and contraindications of Cassia seed?

Cassia seed has the function of moistening intestines and relaxing bowels, and can prevent, relieve or treat constipation. It also has the function of lowering blood fat and lowering blood pressure, and can relieve symptoms caused by elevated blood pressure and blood fat. It has the functions of clearing liver and relieving diarrhea. Cassia seed is contraindicated for people with low blood pressure, diarrhea or deficiency of spleen and stomach.