In general, Danshen Injection cannot be used together with vitamin C. The main ingredient of Danshen Injection is a sterilized aqueous solution processed from Danshen. This drug has the effect of opening the veins and nourishing the heart, activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), and is suitable for coronary heart disease with chest tightness and angina pectoris. The instructions for use of this drug clearly state that it needs to be used alone, so it cannot be used together with vitamin C, especially not mixed with vitamin C injection. During the use of Danshen injection, it may cause allergic reactions, palpitations and chest tightness, chills and fever, nausea and vomiting and other adverse reactions, allergy and serious side effects are prohibited, pregnant women, newborns, infants and young children, menstruation, bleeding tendency, are required to prohibit the use of this drug. This drug should not be used in conjunction with the traditional Chinese medicine veratrum and its preparations. Vitamin C should not be used in large quantities for a long time. Patients should not use Danshen injection and vitamin C privately, so as not to injure the body with improper use of medication, if you need to use medication, you must go through the guidance of a professional doctor.