Vitamina A
Revisione paritaria di Sid DajaniUltimo aggiornamento di Michael Stewart, MRPharmSUltimo aggiornamento 5 Ott 2024
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Vitamin A supplements are taken to prevent vitamin A deficiency (although this is rare in the UK).
You should not take vitamin A supplements if you are pregnant.
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About vitamin A
Tipo di medicinale | Vitamina A |
Utilizzato per | To prevent or treat vitamin A deficiency |
Chiamato anche | Retinol |
Disponibile come | Capsules or drops (multivitamin) |
Vitamin A is a vitamin which is important for healthy eyes, good eyesight and a healthy skin. It also helps you to fight infections.
Your doctor may recommend that you (or your child) take a supplement of vitamin A if you cannot get sufficient from your normal diet, or if you are at risk of carenza di vitamina A for some other reason. Vitamin A supplements usually contain other vitamins also, such as vitamin D and vitamin C. They are available to buy without a prescription.
Before taking vitamin A
Torna ai contenutiTo make sure that this is the right treatment for you, before you start taking vitamin A it is important that you speak with your doctor or pharmacist:
If you are pregnant, trying for a baby or breastfeeding. This is because you are advised fare affidamento to take vitamin A supplements during pregnancy or if you are breastfeeding, unless prescribed by a doctor.
Se hai mai avuto una reazione allergica a un medicinale.
If you are taking other medicines, including those available to buy without a prescription, as well as herbal and complementary medicines. It is particularly important that you say if you are taking a retinoid preparation (such as isotretinoin) for a skin condition.
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How to take vitamin A
Torna ai contenutiBefore you start taking a vitamin A supplement, please read the manufacturer's printed information leaflet from inside the pack.
Vitamin supplements are usually taken once a day. Your doctor, pharmacist or health visitor will tell you how much you (or your child) should take. The dose will also be on the label of the pack. You can take vitamin supplements at whatever time of day you find easiest to remember. They can be taken either before or after meals.
Do not take more than the dose which has been recommended or prescribed.
Ottenere il massimo dal tuo trattamento
Torna ai contenutiFoods that contain vitamin A are eggs, milk, liver and fish-liver oils. Another substance called beta-carotene (which is found in green leafy and orange/yellow vegetables and fruits) can be converted by your body into vitamin A and so is also a good source. Try to regularly include some of these foods in your meals.
Just a reminder that you should not take vitamin A supplements if you are (or think you may be) pregnant. This includes taking fish-liver oil preparations. This is because there is evidence to suggest that high levels of vitamin A can cause problems in babies. Also, you should not eat liver or liver-containing foods such as liver pâté or liver sausage because they too contain a lot of vitamin A.
Before buying or taking any 'over-the-counter' medicines, please check with a pharmacist which medicines are safe for you to take alongside vitamin A.
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Can vitamin A cause problems?
Torna ai contenutiAlthough vitamin A is unlikely to cause any side-effects at the recommended doses, large overdoses can be associated with unwanted effects. 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 vitamin A
Torna ai contenutiTenere tutti i medicinali fuori dalla portata e dalla vista dei bambini.
Conservare in un luogo fresco e asciutto, lontano da fonti di calore e luce diretta.
Informazioni importanti su tutti i medicinali
Torna ai contenutiInformazioni importanti su tutti i medicinali
Se devi sottoporti a un'operazione o a un trattamento dentistico, informa la persona che esegue il trattamento sui medicinali che stai assumendo.
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.
Questo medicinale è per te. Non darlo ad altre persone anche se la loro condizione sembra essere la stessa della tua.
Non conservare medicinali scaduti o indesiderati. Portali alla tua farmacia locale che li smaltirà per te.
If you have any questions about the medicine ask your pharmacist.
Segnala effetti collaterali di un medicinale o vaccino
Se si verificano effetti collaterali, è possibile segnalarli online tramite il Yellow Card website.

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Ulteriori letture e riferimenti
- Medicinali Completi BNF 89ª Edizione; Associazione Medica Britannica e Società Farmaceutica Reale di Gran Bretagna, Londra.
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About the author

Michael Stewart, MRPharmS
Medicine Leaflet Review Manager – Contractor, Pharmacist
BPharm (Hons), MRPharmS
Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.
About the reviewer

Sid Dajani
Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.
Storia dell'articolo
Le informazioni su questa pagina sono scritte e revisionate da clinici qualificati.
Prossima revisione prevista: 9 Ott 2027
5 Ott 2024 | Ultima versione

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