Vitamin C: Uses, How It Works, Medicines
Vitamin C, also called ascorbic acid, is a vitamin that keeps skin, blood vessels, bones and cartilage healthy and helps wounds heal. The body cannot store it, so it is needed every day from food. Supplements are used when the diet falls short or a doctor advises them.
Also known as: Ascorbic acid, Vitamin C tablet, Vitamin C 500 mg, Chewable vitamin C
Pharmacist review in progress. This page is based on the sources listed below and is being checked by our registered pharmacist.

How does Vitamin C work?
Vitamin C helps protect cells and is needed to make and maintain the connective tissue found in skin, blood vessels, bones and cartilage. The body does not store it, so any excess is passed out in the urine.
How to take Vitamin C
Follow the label or your doctor's advice. Chewable tablets should be chewed or sucked as the pack directs. UK guidance (NHS) says adults need about 40 mg a day, which a varied diet usually provides.
Side effects of Vitamin C
Vitamin C at normal supplement amounts is usually well tolerated. Taking a lot at once can upset the stomach.
Uncommon or mild
- Stomach pain
- Diarrhoea
- Wind (flatulence)
Rare but serious: get medical help
- Swelling of the face, lips or throat, or difficulty breathing (an allergic reaction). Get medical help immediately
- Severe or persistent stomach pain or diarrhoea
Who should be careful
Most people can take vitamin C, but a few need to check with a doctor first.
- Taking more than 1,000 mg a day in supplements can cause stomach pain, diarrhoea and wind (NHS)
- A history of kidney stones, kidney disease or iron overload: ask a doctor before using high-dose vitamin C
- Pregnancy or breastfeeding: ask a doctor or pharmacist before taking a supplement
If someone takes too much
A single extra tablet is unlikely to cause serious problems, but large amounts can cause stomach pain and diarrhoea. If someone has taken much more than the label says, ask a doctor or pharmacist, or call 112 or go to the nearest hospital if they are unwell.
Regulatory status in India
Vitamin C is not on the CDSCO list of medicines banned under section 26A of the Drugs and Cosmetics Act. Whether a vitamin C product is sold as a medicine or a food supplement, and whether it needs a prescription, depends on the product; check the pack.
Type of medicine
Vitamin C belongs to this type of medicine.
Medicines that contain Vitamin C
These medicines sold in India contain Vitamin C. They are listed A to Z, not ranked.
- Becosules · See pack capsule
- Limcee 500 · 500 mg chewable tablet
- Zincovit · See pack tablet
What is Vitamin C used for?
Medicines that contain Vitamin C are used for these conditions.
Other medicines of the same type
These active ingredients are of the same type as Vitamin C.
Common questions
What does vitamin C do in the body?
It helps protect cells and keep them healthy, supports skin, blood vessels, bones and cartilage, and helps wounds heal. A lack of it over a long time can lead to a disease called scurvy. Citrus fruit, peppers, strawberries and broccoli are good food sources.
Is it harmful to take too much vitamin C?
Less than 1,000 mg a day in supplements is unlikely to cause harm. More than that can cause stomach pain, diarrhoea and wind, which usually stop when the supplement is stopped. Check the strength on the pack and ask a doctor or pharmacist if unsure.
Do I need to take vitamin C every day?
The body cannot store vitamin C, so it is needed regularly, mainly from food. A varied diet usually provides enough. Whether you need a supplement is a decision for you and your doctor or pharmacist.
Sources
- Vitamin C. NHS (UK)
