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Thiamine - Vitamin B1

Athiam, ThiaDose, ThiamEss

Thiamine is a type of vitamin B.

It is recommended as a vitamin supplement for people who cannot get sufficient vitamin B1 from their normal diet.

It is unlikely to cause side-effects.

En un coup d'œil

  • Thiamine is vitamin B1 and is used to treat or prevent thiamine deficiency.

  • It is available as tablets, modified-release tablets, and oral liquid medicine.

  • You can take it at any time of day, with or without food.

  • It is unlikely to cause side-effects at recommended doses.

  • Tell your doctor if you are pregnant, breastfeeding, or have had an allergic reaction to medicine.

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About thiamine

Type de médicament

Vitamin B1

Utilisé pour

Thiamine deficiency

Aussi appelé

Athiam®; ThiaDose®; ThiamEss®

Disponible sous forme de

Tablets, modified-release tablets, oral liquid medicine

Thiamine is a type of vitamin B. Several different substances belong to the group of vitamins known as the B vitamins. Thiamine is known as vitamin B1.

Foods that are good natural sources of thiamine are cereals, nuts, peas, beans and pork. Although thiamine deficiency tends to be rare in the UK, your doctor may recommend that you take a supplement of thiamine if for some reason you cannot get sufficient vitamin B1 from your normal diet.

Thiamine is also an ingredient of a number of multiple-vitamin preparations that are available to buy without a prescription.

To make sure that this is the right treatment for you, before you start taking thiamine it is important that you speak with a doctor or pharmacist:

  • If you are pregnant 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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  • Before you start taking thiamine, read the manufacturer's printed information leaflet from inside the pack.

  • Thiamine tablets are usually taken once a day. Doses of 25-100 mg are sufficient to prevent mild 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 (200-300 mg daily), your doctor will recommend that you take this as one tablet (100 mg) two or three times a day.

  • Do not take more than the dose which has been recommended or prescribed.

  • It is likely that your doctor will give you some lifestyle and dietary advice. It is important you follow any recommendations you are given about eating a well-balanced diet and not drinking alcohol.

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Thiamine is unlikely to cause any side-effects at the recommended doses. If, however, you experience any symptoms which you think may be due to the tablets, please speak with your doctor or pharmacist for further advice.

  • Gardez 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

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, go to the accident and emergency department of your local hospital for advice. Take the container with you, even if it is empty.

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 le 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 de Yellow Card.

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Questions fréquemment posées

What is thiamine, and why is it important?

Thiamine is a fundamental type of vitamin B, specifically known as vitamin B1. It is essential for normal bodily functions, and while deficiencies are uncommon in the UK, your doctor might suggest a supplement if your usual diet doesn't supply enough.

Which everyday foods naturally contain thiamine?

Good natural sources of thiamine include various everyday foods such as cereals, nuts, peas, beans, and pork. Incorporating these into your diet can help ensure you get sufficient vitamin B1.

Who should discuss thiamine supplementation with a doctor before taking it?

You should speak with a doctor or pharmacist before taking thiamine if you are pregnant or breastfeeding, or if you have previously had an allergic reaction to any medicine. This ensures the treatment is appropriate and safe for your specific circumstances.

Does thiamine need to be taken with food, or at a specific time of day?

Thiamine tablets can be taken at any time of day that you find most convenient to remember, either before or after your meals. The instructions provided with your medicine will confirm this, but generally, there's no strict requirement to take it with food.

What should I do if I think I've taken too much thiamine?

If you suspect that you or someone else might have taken an overdose of thiamine, you should immediately go to the accident and emergency department of your local hospital for advice. Remember to take the medicine container with you, even if it is empty.

Lectures complémentaires et références

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À propos de l'auteurVoir la biographie complète

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Michael Stewart, MRPharmS

Responsable de l'examen des notices de médicaments – Contractuel, Pharmacien

BPharm (Hons), MRPharmS

Michael est un pharmacien communautaire exerçant dans les Midlands et le South Yorkshire avec plus de 20 ans d'expérience dans le conseil sur les médicaments et les conditions médicales. Il possède une solide expérience en formation dans le domaine de la santé, ayant produit et dispensé des cours de formation pour les équipes de pharmacie et le personnel des établissements de soins résidentiels, y compris les infirmières. Il a également contribué aux comités consultatifs de pharmacie pour la gestion des affections de faible gravité dans la communauté.

À propos du critique

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Sid Dajani

Sultan Dajani a obtenu son diplôme à la London School of Pharmacy en 1994 et est devenu le plus jeune membre élu du conseil de la Royal Pharmaceutical Society depuis sa fondation en 1842.

Historique de l'article

Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.

  • Next review due: 11 Nov 2027
  • 12 nov. 2024 | Dernière version

    Dernière mise à jour par

    Michael Stewart, MRPharmS

    Revu par

    Sid Dajani
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