Can Salvia miltiorrhiza (Danshen) be steeped in water and consumed long-term?

Generally speaking, Danshen (Salvia miltiorrhiza) should not be consumed long-term by steeping in water. The detailed explanation is as follows:

Danshen has a slightly cold nature, and long-term consumption may irritate the gastrointestinal tract, causing discomfort symptoms such as stomach pain, nausea, vomiting, abdominal pain, and diarrhea. Danshen has functions of promoting blood circulation and removing blood stasis. Long-term and excessive consumption may prolong blood clotting time and increase the risk of bleeding. Individuals currently taking anticoagulant medications should use it with caution. Long-term consumption of a single herb to steep in water may lead to tolerance by the body, thus reducing its therapeutic effectiveness. Some individuals may be allergic to Danshen, experiencing allergic reactions such as rashes, itching, and swelling after consumption.

However, it is important to note that moderate consumption is acceptable, while excessive intake may lead to adverse reactions. Special populations such as pregnant women, lactating women, individuals with excessive menstrual bleeding, and those with allergic constitutions should use Danshen with caution. Additionally, Danshen may interact with certain medications, such as anticoagulants like warfarin. Individuals should inform their doctors when consuming Danshen to allow for professional evaluation.