Vitamin EC granules are compounded preparations, made of vitamin E and vitamin C. This drug is mainly used to prevent and treat diseases caused by vitamin E and vitamin C deficiency. Vitamin E has a wide range of actions in the body, participating in the activities of many coenzymes and enhancing cellular antioxidant effects. Vitamin E promotes fertility, sex hormone secretion and fertility. Vitamin E also maintains the normal structure and function of skeletal muscle, cardiac muscle and smooth muscle, reduces oxygen consumption in tissues and improves oxygen utilization. Vitamin E also maintains capillary permeability, increases blood flow, increases defense against cold, and repairs damage to blood vessels, inhibits the aggregation of platelets, and has the effect of preventing blood clots. Vitamin C is a water-soluble vitamin, also known as ascorbic acid, which is mainly involved in amino acid metabolism, synthesis of neurotransmitters, collagen and inter-tissue synthesis, reduces vascular permeability, accelerates blood clotting, promotes iron absorption, induces a decrease in blood lipids, increases resistance to infection, participates in detoxification functions, and has the effect of anti-allergy and preventing the production of carcinogenic substances. Clinically, vitamin C is mainly used in the treatment of scurvy prevention and treatment of vitamin C deficiency, infection, poisoning, anemia and allergy. Both vitamin E and vitamin C have antioxidant capacity, and the combination of the two makes a compound preparation with enhanced antioxidant capacity, resulting in enhanced scavenging of oxygen free radicals and good anti-aging effects.