1. Multiple and universal. Almost all traditional Chinese medicine injections have had adverse reactions.
2. Diversity of clinical manifestations. Adverse reactions of traditional Chinese medicine injections can lead to multiple organ and system injuries.
3. Unpredictability. Because of the complex components of traditional Chinese medicine injection and many unknown components, the adverse reactions are unpredictable.
4. Uncertainty. It is impossible to determine how many adverse reactions a traditional Chinese medicine injection may cause. For example, there are more than a dozen clinical manifestations of adverse reactions of Xiangdan injection.
5. Batch differences. Due to the rough quality standards of traditional Chinese medicine injections, the types of adverse reactions of different manufacturers and batches are quite different, so it is impossible to draw a definite conclusion.