Experts from the Chinese Pharmaceutical Association point out that medicinal teas should be made with appropriate Chinese herbs. If the selected herbs do not match the symptoms, long-term consumption may produce adverse effects. Boat-fruited sterculia seed, cassia seed, and licorice are often consumed as daily teas, but these three types of tea are not suitable for long-term consumption.

Experts indicate that, in general, boat-fruited sterculia seed can be consumed appropriately for sore throat and hoarseness caused by wind-heat colds; cassia seed can be consumed for上火 symptoms such as red and painful eyes and constipation; licorice can be consumed when there are frequent symptoms of palpitations and shortness of breath.

Long-term consumption of boat-fruited sterculia seed may produce side effects such as loose stools and chest tightness. The elderly who suddenly lose their voice or have a weak spleen should be especially cautious when using boat-fruited sterculia seed.

It is best for the elderly not to take dried flowers or Chinese herbs as supplements. Excessive dosage or prolonged consumption may cause toxic side effects. Patients currently taking Western medicine should be particularly careful, as inappropriate combination with Western medicine may cause harm to the body.