Is it safe to consume Dendrobium (Shihu) together with Cornus officinalis (Shanzhuyu)?
Generally, Dendrobium (Shihu) can be taken with Cornus officinalis (Shanzhuyu) following medical advice.

Dendrobium enters the stomach and kidney meridians and has functions of benefiting the stomach and promoting body fluid production, as well as nourishing yin and clearing heat. It can be used to treat symptoms such as body fluid damage due to febrile diseases, dry mouth, irritability, and thirst. On the other hand, Cornus officinalis can nourish the liver and kidney and has an astringent effect, primarily used for treating conditions like liver and kidney yin deficiency, dizziness, tinnitus, soreness and weakness in the lower back and knees, premature ejaculation, spermatorrhea, tidal fever due to bone steaming (a symptom of yin deficiency). Combining Dendrobium with Cornus officinalis can enhance the effect of nourishing yin and benefiting the kidney, potentially having a positive impact on alleviating related symptoms.
However, individuals with specific medical conditions or sensitive constitutions, such as pregnant women, lactating women, and those with impaired liver or kidney function, should use these two Chinese herbs cautiously under the guidance of a physician. Individuals suffering from damp-heat conditions, difficult or painful urination, or excessive stomach acid should also use them cautiously or avoid consumption altogether.
In daily life, maintaining healthy eating habits and engaging in moderate physical activity can help improve overall health.