Vitamin C tablets are effective in enhancing immunity, promoting non-heme iron absorption, and fat and protein synthesis, preventing scurvy, and aiding in the treatment of acute and chronic infectious diseases, purpura, and other diseases. Vitamin C tablets are vitamin C supplementation drugs. From a pharmacological point of view, vitamin C participates in the redox process of the organism, and to a certain extent, it can enhance immunity, promote the absorption of non-heme iron, as well as the synthesis of fats and proteins and other substances, in addition to vitamin C tablets can reduce the permeability of capillaries. Vitamin C tablets can be used to assist in the treatment of various acute and chronic infectious diseases and purpura and other diseases, in addition to preventing the occurrence of scurvy. Generally follow the doctor’s instructions for normal consumption has no effect on the body, if overdose, it is prone to diarrhea, headache, frequent urination, nausea, vomiting, stomach cramps and other adverse reactions. Patients who are allergic to vitamin C components are prohibited to prevent allergic symptoms such as generalized rash and skin itching. When the body is in discomfort, patients must follow the doctor’s instructions to strictly take vitamin C tablets, do not self-medication.