Vitamin C effervescent tablets are used to strengthen the body’s resistance, prevent and treat all kinds of acute and chronic infectious diseases or other diseases, used for post-disease adjuvant therapy, but also for the prevention and treatment of scurvy. Long-term large amounts can cause scurvy after stopping the drug, can cause urate, cysteine salt or oxalate stones. Overdose can cause diarrhea and other adverse reactions. Vitamin C effervescent tablets is a common vitamin drug, used for the prevention and treatment of various acute and chronic infectious diseases or other diseases, used for the recovery period after illness and trauma healing and allergic diseases and auxiliary treatment, but also for the prevention and treatment of scurvy. There are no significant adverse effects when taken normally in accordance with the recommended dose, but long-term large doses can cause scurvy after discontinuation of the drug, can cause urate, cysteinate or oxalate stones. Overdose can cause diarrhea, red and bright skin, headache, frequent urination, nausea and vomiting, stomach cramps and other adverse reactions. When the body is not feeling well, you need to go to the hospital, under the guidance of the doctor to take vitamin C effervescent tablets, do not self-medication.