According to the query of Maigoo brand list network, Buddleja officinalis is a non-toxic Chinese herbal medicine, and people will not have obvious side effects when soaking in water, but it is a cold health tea. People with cold nature or deficiency of spleen and stomach will increase the burden of spleen and stomach after taking Buddleja officinalis, which will easily aggravate the symptoms of deficiency of spleen and stomach. Some people will also have bad symptoms such as abdominal pain and diarrhea, which people must pay attention to when taking Buddleja officinalis. Buddleja officinalis can be soaked in water, and it doesn't matter whether it is hot or cold, but people with cold nature or deficiency of spleen and stomach can't drink it.