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Alfacalcidol cápsulas y gotas

One-Alpha

Alfacalcidol is a type of vitamin D.

You will need to have regular blood tests while you are taking the medicine so that your doctor can adjust your dose.

Make sure you know the symptoms of too much calcium in your blood - these are losing your appetite, feeling thirsty, being sick (vomiting), feeling tired and losing weight. Please let your doctor know if you develop these symptoms.

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About alfacalcidol

Tipo de medicamento

A type of vitamin D

Utilizado para

To promote healthy bones

También llamado

One-Alpha®; AlfaD®;AlciDol®; AlfacalEss®;
Alfacalcidol is also called 1α-hydroxycholecalciferol or 1α-hydroxyvitamin D3

Disponible como

Capsules, oral drops and injection

Alfacalcidol is a type of vitamin D. Vitamin D helps to regulate the amount of calcium and phosphate in your body. All three of these substances are important for maintaining healthy, strong bones and teeth.

There are several types of vitamin D available but most other types need 'activating' by the kidneys. Alfacalcidol is a form of vitamin D which does not need this activation process, and so it is particularly helpful for people who need their bones strengthening but who also have kidney problems. You may also need to take mineral supplements along with alfacalcidol.

Alfacalcidol is available as capsules, as oral liquid drops and also as an injection.

Before taking alfacalcidol

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking alfacalcidol it is important that your doctor knows:

  • Si está embarazada o en periodo de lactancia.

  • If you have ever had kidney stones or you have other problems with your kidneys.

  • If you know you have too much calcium in your blood or urine. This can happen with some cancers.

  • If you have any heart problems.

  • If you have an allergy to sesame oil (used in One-Alpha® capsules).

  • If you have been told you have sarcoidosis or other rare, 'granulomatous' disease.

  • Si está tomando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que pueda adquirirse sin receta, así como medicamentos a base de plantas y complementarios.

  • Si alguna vez ha tenido una reacción alérgica a un medicamento.

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How to take alfacalcidol

  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about alfacalcidol and will provide you with a full list of the side-effects which you may experience from taking it.

  • Take alfacalcidol exactly as your doctor tells you to. It is usually taken as one dose a day. Try to take your doses at the same time of day each day, as this will help you to remember to take it regularly.

  • There are three strengths of capsule and one strength of oral drop available - your doctor will tell you what dose to take each day. Your dose could change from time to time depending upon the results of your routine blood tests.

  • Si olvida tomar una dosis, tómela en cuanto se acuerde. Si no se acuerda hasta el día siguiente, sáltese la dosis olvidada. No tome dos dosis juntas para compensar la dosis olvidada.

Directions for using One-Alpha® drops

Note: each drop contains 0.1 microgram (100 nanograms) of alfacalcidol.

  1. Remove the bottle cap. (Do not shake the bottle before using.) You will see a dropper which is ready for you to use.

  2. Hold the bottle upside down so that a drop appears at the end of the dropper. If a drop doesn't form, tap the bottle gently with a finger so that it does.

  3. Let the drop fall into your (or your child's) mouth, or catch it on a spoon if this is easier. Your doctor will tell you how many drops to take - count these out carefully to make sure that you (or your child) take the correct number.

Aproveche al máximo su tratamiento

  • Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. Your doctor will want you to have regular blood tests during the treatment to check on the amount of calcium in your blood. Your dose of alfacalcidol will be adjusted as a result of having these tests.

  • Treatment with alfacalcidol may be for short periods of time (such as in preparation for surgery), or could be long-term. Please continue to take alfacalcidol regularly unless you are told otherwise by your doctor.

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Can alfacalcidol cause problems?

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. Alfacalcidol occasionally causes skin rashes but other side-effects could be due to too much calcium being in your blood (see the table below). You will find a full list of side-effects in the manufacturer's information leaflet supplied with your medicine. Please speak with your doctor or pharmacist if any of the following continue or become troublesome.

Alfacalcidol side-effects

¿Qué puedo hacer si me ocurre esto?

Skin rash and itchiness

En caso de molestias, hable con su médico

Sensación de mareo

Do not drive and do not use tools or machines until you are feeling better

Loss of appetite, loss of weight, feeling tired, feeling sick (nausea), feeling thirsty, sweating, a metallic taste in your mouth, a need to pass urine more often

These are signs that there could be too much calcium in your blood. Make an appointment to see your doctor as soon as possible. Your dose may need adjusting or your treatment with alfacalcidol may need to be stopped for a few days

If you experience any other symptoms which you think may be due to alfacalcidol, please speak with your doctor or pharmacist for further advice.

How to store alfacalcidol

  • Mantenga todos los medicamentos fuera del alcance y de la vista de los niños.

  • Capsules should be stored in a cool, dry place, away from direct heat and light.

  • Oral drops should be kept refrigerated once the bottle has been opened. Do not use or keep an opened bottle for longer than 28 days.

Información importante sobre todos los medicamentos

Información importante sobre todos los medicamentos

No tome nunca más de la dosis prescrita. Si sospecha que usted u otra persona ha tomado una sobredosis de este medicamento, acuda al servicio de urgencias de su hospital. Llévese el envase, aunque esté vacío.

Este medicamento es para usted. Nunca se lo dé a otras personas aunque su enfermedad parezca ser la misma que la suya.

Si compra algún medicamento, compruebe con un farmacéutico que es adecuado para tomarlo con sus otros medicamentos.

Si va a someterse a una operación o a un tratamiento dental, comunique a la persona que lleve a cabo el tratamiento qué medicamentos está tomando.

No guarde medicamentos caducados o que no desee. Llévelos a su farmacia local, que se encargará de eliminarlos por usted.

Si tiene cualquier duda sobre este medicamento pregunte a su farmacéutico.

Informar de los efectos secundarios de un medicamento o vacuna

Si experimenta efectos secundarios, puede notificarlos en línea a través del sitio web de la Tarjeta Amarilla.

Lecturas complementarias y referencias

Historia del artículo

La información de esta página ha sido redactada y revisada por médicos cualificados.

  • Fecha de la próxima revisión: 25 de agosto de 2027
  • 23 ago 2024 | Última versión

    Última actualización

    Michael Stewart, MRPharmS

    Revisado por expertos

    Sid Dajani
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