Ascorbic acid tablets
vitamine C
Revu par Sid DajaniDernière mise à jour par Michael Stewart, MRPharmSDernière mise à jour 5 nov. 2024
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Ascorbic acid is another name for vitamin C.
One dose a day of 25-75 mg is sufficient to prevent vitamin C deficiency. Higher doses are sometimes prescribed by doctors to treat a condition called scurvy (although this occurs only rarely in the UK).
Some ascorbic acid tablets should be chewed before they are swallowed and others need to be dissolved in water first. Check the label on the container and follow the directions given.
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About ascorbic acid
Type de médicament | A vitamin |
Utilisé pour | Preventing and treating vitamin C deficiency |
Aussi appelé | Vitamin C, Ascur®, Ascorb®, AascorbDose®, Biocare®, Haliborange®, Vodexo® |
Disponible sous forme de | Tablets, chewable tablets, soluble tablets, capsules |
Ascorbic acid is also known as vitamin C. Our bodies need vitamin C to make a substance called collagen which is required for the health and repair of our skin, bones, teeth and cartilage. We get vitamin C from the food we eat, particularly fruit and vegetables. A lack of vitamin C in our diet over a period of time can lead to a condition called scurvy, although this is rare in the UK. Symptoms of scurvy include bleeding from the gums, bruising, and joint and muscle pains. It has also been suggested that a lack of vitamin C may cause poor wound healing and problems fighting infection, although this has not been proven. Carence en vitamine C can be treated with supplements of vitamin C (as ascorbic acid tablets) and eating foods which are rich in vitamin C.
Ascorbic acid is an ingredient of a number of vitamin preparations and some cough and cold remedies that are available to buy from retail outlets.
Before taking ascorbic acid
Retour au sommaireTo make sure that this is the right treatment for you, before you start taking ascorbic acid it is important that you speak with your doctor or pharmacist:
If you are pregnant, trying for a baby or breastfeeding. This is because, while you are expecting or feeding a baby, you should only take medicines on the recommendation of a doctor.
Si vous avez déjà eu une réaction allergique à un médicament.
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How to take ascorbic acid
Retour au sommaireBefore you start taking the tablets, read the manufacturer's printed information leaflet from inside the pack.
Ascorbic acid tablets are usually taken once a day. Doses of 25-75 mg are sufficient to prevent vitamin C deficiency. You can take the tablets at whatever time of day you find easiest to remember, either before or after meals. If you have been prescribed a higher dose (more than 250 mg), your doctor will recommend that you take this in divided doses. Your dose will be on the label of the pack to remind you about what the doctor said to you.
Do not take more than the dose which has been recommended or prescribed.
Some ascorbic acid tablets should be chewed before they are swallowed and others need to be dissolved in water first. Check the label on the container of your supply and follow the directions given.
If you forget to take a dose, don't worry, just take the next dose when it is due. Do not take two doses at the same time to make up for a missed dose.
Tirer le meilleur parti de votre traitement
Retour au sommaireFoods that are rich in vitamin C include citrus fruits (like oranges, grapefruit, limes and lemons), berries (such as blackcurrants, strawberries, raspberries, blueberries and cranberries), cantaloupe melon, watermelon and kiwi fruit. Vegetables rich in vitamin C include spinach, green and red peppers, tomatoes, cauliflower, cabbage, broccoli, Brussels sprouts and potatoes. Try to include some of these fruits and vegetables regularly in the foods that you eat.
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Can ascorbic acid cause problems?
Retour au sommaireAlthough ascorbic acid is unlikely to cause any side-effects at the recommended doses, large doses taken over a long period of time can be associated with unwanted effects (mainly stomach upset). If you experience any symptoms which you think may be due to the medicine, speak with your doctor or pharmacist for further advice.
How to store ascorbic acid
Retour au sommaireGardez tous les médicaments hors de la portée et de la vue des enfants.
Conserver dans un endroit frais et sec, à l'abri de la chaleur et de la lumière directes.
Informations importantes sur tous les médicaments
Retour au sommaireInformations importantes sur tous les médicaments
Si vous subissez une opération ou un traitement dentaire, informez la personne qui effectue le traitement des médicaments que vous prenez.
Never take more than the prescribed dose. If you suspect that you or someone else might have taken an overdose of this medicine, contact a doctor or the accident and emergency department of your local hospital for advice.
Ce médicament est pour vous. Ne le donnez pas à d'autres personnes même si leur état semble être le même que le vôtre.
Ne gardez pas de médicaments périmés ou indésirables. Apportez-les à votre pharmacie locale qui s'en débarrassera pour vous.
Si vous avez des questions concernant ce médicament, demandez à votre pharmacien.
Signaler les effets secondaires d'un médicament ou d'un vaccin
Si vous ressentez des effets secondaires, vous pouvez les signaler en ligne via le site web Yellow Card.

Vous n'êtes pas sûr de mélanger des médicaments ?
Vérifiez les interactions possibles entre les médicaments, les compléments et les aliments avant de les prendre ensemble.
Lectures complémentaires et références
- Médicaments Complets BNF 89e Édition; Association Médicale Britannique et Société Royale Pharmaceutique de Grande-Bretagne, Londres.
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Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
Next review due: 8 Nov 2027
5 nov. 2024 | Dernière version

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