Dangshen Shengmai Drink should be Shengmai Drink (Dangshen Formula). Shengmai Drink (Dangshen Formula) does not have special miraculous effects, but its efficacy is to benefit qi and restore the veins (make the veins full and smooth by replenishing qi), nourish yin and promote the production of body fluid, and is used for treating palpitation (accelerated heartbeat often accompanied with panic) caused by deficiency of both qi and yin. Sheng Wei Drink (Dang Shen Formula) is composed of Dang Shen, Maitong and Wu Wei Zi, which has the efficacy of replenishing Qi and restoring the veins, nourishing Yin and generating fluids, and can be used for the treatment of palpitations caused by deficiency of Qi and Yin, such as palpitations with restlessness, fatigue, dryness of the mouth, shortness of breath, heartburn and sweating. Its adverse reactions and contraindications are not clear. Caution should be exercised if the patient has weak spleen and stomach, abdominal distension and loose stools (thin and unformed feces), vomiting and diarrhea, or cough with excessive phlegm. It should not be taken by patients with colds; this product should be taken before meals. If you experience any discomfort after taking Sheng Vein Drink (Codonopsis Fructus), you should seek medical advice from a doctor. This drug is recommended to be used under the guidance of a doctor to avoid improper use of medication and delay of the condition.