Suplementos de calcio
Adcal, Calcichew, Phosex
Revisado por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 27 Sept 2022
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Calcium supplements are available as different types of tablet - chewable tablets, soluble and effervescent tablets and tablets to swallow whole. Read the label carefully to check how to take your tablets.
Calcium can interfere with the way other medicines are absorbed. If you are taking any other medicines ask your pharmacist for advice.
Calcium supplements rarely cause any side-effects.
Explore calcium and vitamin D supplements
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About calcium supplements
Tipo de medicamento | Calcium supplement |
Usado para | Calcium deficiency |
También llamado | AaceCa®; A1-Cal®; Adcal®; Calcichew®; Calcium-500®; Calconate®; Phosex®; Renacet®; |
Disponible como | Tablets, chewable tablets, soluble and effervescent tablets and oral liquid |
Calcium is a naturally occurring substance which is important for healthy, strong bones. Our bodies usually get sufficient calcium from what we eat. Good sources of calcium in food are milk, hard cheese (such as cheddar or Edam), yoghurt, bread, calcium-fortified soya milk, and some vegetables (spinach and watercress). Sometimes though, our bodies need more calcium than normal - for example, in childhood and during embarazo or whilst lactancia. Also, as we become older our bodies may not absorb as much calcium as they once did. When there is not enough calcium in our diet for our body's needs then a calcium supplement may be useful.
Calcium tablets are also taken by people who have kidney problems. The levels of a substance in the body, called phosphate, can be too high in people with enfermedad renal crónica. Calcium binds to the phosphate and this allows it to be removed, helping to keep the levels normal.
Calcium supplements are also taken alongside other medicines for preventing or treating 'adelgazamiento' de los huesos (osteoporosis). In this case calcium is often combined with vitamin D in chewable or effervescent tablets. More information about this can be found in the separate medicine leaflet called Calcio con colecalciferol.
Calcium supplements are available on prescription, or you can buy them without a prescription at pharmacies.
Before taking calcium supplements
To make sure this is the right treatment for you, before you start taking a calcium supplement it is important that your doctor or pharmacist knows:
Si estás embarazada o amamantando. Esto se debe a que, mientras esperas o alimentas a un bebé, solo debes tomar medicamentos por recomendación de un médico.
Si tiene problemas renales o ha tenido cálculos renales alguna vez.
If you have a condition called sarcoidosis which causes inflammation, particularly in your lungs and lymph system.
If you know you have too much calcium in your blood or urine. This can happen with some cancers or with certain medicines for high blood pressure.
If you are taking levothyroxine for an underactive thyroid gland (hypothyroidism). This is because calcium affects how well your body absorbs levothyroxine.
Si está tomando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que esté disponible para comprar sin receta, así como medicamentos herbales y complementarios.
Si alguna vez has tenido una reacción alérgica a un medicamento.
How to take calcium supplements
Before you start this treatment, read the manufacturer's printed information leaflet from the pack. The leaflet will give you more information about how to take the supplement, and also a full list of side-effects which you may experience.
If you are prescribed calcium by a doctor, you will be told how many tablets to take each day and when to take them. If you have purchased the tablets from a pharmacy, read the label on the preparation carefully to find out how to take them.
Some tablets should be swallowed whole without being chewed, other tablets must be chewed before being swallowed, and some need to be dissolved in water. If you are unsure how to take your tablets, ask your pharmacist for advice.
Calcium supplements can interfere with the way your body absorbs other medicines so you may need to take these at a different time to your calcium - please ask your pharmacist for advice. Medicines that may be affected include levothyroxine (thyroid hormone) and certain antibiotics.
If you forget to take a dose don't worry, just leave out the missed dose and take the next when it is due. Do not take two doses together to make up for a forgotten dose.
Obteniendo el máximo de tu tratamiento
Try to eat a balanced diet with plenty of fruit and vegetables and good sources of calcium such as milk and yoghurt.
Si tienes programada una operación o cualquier tratamiento dental, informa a la persona que realizará el tratamiento sobre los medicamentos que estás tomando.
If you buy any medicines, check with your pharmacist that they are suitable to take with a calcium supplement.
Can calcium supplements cause problems?
Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. It is rare for calcium supplements to cause side-effects but the table below lists some that may occur. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following side-effects continue or become troublesome
Rare calcium side-effects - these affect fewer than 1 in 1,000 people who take this medicine | ¿Qué puedo hacer si experimento esto? |
Feeling sick (nausea), stomach upset, or loose, watery stools (diarrhoea) | Drink plenty of water and stick to simple food - avoid rich or spicy meals |
Si experimenta otros síntomas que cree que pueden deberse a este medicamento, hable con su médico o farmacéutico.
How to store calcium supplements
Mantenga todos los medicamentos fuera del alcance y la vista de los niños.
Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.
Keep containers tightly closed to prevent moisture affecting the tablets.
Información importante sobre todos los medicamentos
Información importante sobre todos los medicamentos
Nunca tome más de la dosis prescrita. Si sospecha que usted u otra persona podría haber tomado una sobredosis de este medicamento, acuda al departamento de accidentes y emergencias de su hospital local. Lleve el envase con usted, incluso si está vacío.
Este medicamento es para ti. Nunca lo des a otras personas, incluso si su condición parece ser la misma que la tuya.
No guardes medicamentos caducados o no deseados. Llévalos a tu farmacia local, donde se encargarán de desecharlos por ti.
Si tienes alguna pregunta sobre este medicamento, consulta a tu farmacéutico.
Informar efectos secundarios de un medicamento o vacuna
Si experimenta efectos secundarios, puede reportarlos en línea a través de Sitio web de Yellow Card.
Preguntas frecuentes
Can I take calcium supplements if I am pregnant or breastfeeding?
If you are pregnant or breastfeeding, you should only take medicines, including calcium supplements, on the recommendation of a doctor. It's important to consult them first.
What should I do if I am taking levothyroxine and need to take a calcium supplement?
Calcium supplements can affect how well your body absorbs levothyroxine, a medicine for an underactive thyroid gland. It is important to ask your pharmacist for advice on how to take these medications at different times to avoid interference.
Are there any specific medical conditions that mean I shouldn't take calcium supplements?
Yes, there are several conditions where calcium supplements might not be suitable or require caution. These include kidney problems, a history of kidney stones, sarcoidosis, or if you are known to have too much calcium in your blood or urine. Always inform your doctor or pharmacist about your full medical history before starting calcium supplements.
What should I do if I forget to take a dose of my calcium supplement?
If you forget to take a dose, you should skip the missed dose and take the next one when it is due. Do not take two doses together to make up for a forgotten dose.
What should I do if I experience side-effects from a calcium supplement?
Side-effects from calcium supplements are rare, but if you experience any, such as feeling sick, stomach upset, or diarrhoea, try drinking plenty of water and eating simple foods. If these, or any other symptoms you suspect are due to the supplement, continue or become troublesome, you should speak with your doctor or pharmacist.
How long should I store calcium supplements after opening?
The article advises keeping all medicines out of date or unwanted medicines. You should also keep containers tightly closed to prevent moisture affecting the tablets. However, it does not specify a duration for how long to store them after opening, but rather how to store them generally. For disposal, take them to your local pharmacy.
Lecturas adicionales y referencias
- Manufacturer's PIL, Calcichew® 500 mg Chewable Tablets; Neon Healthcare Ltd, electronic Medicines Compendium. Dated September 2021.
- Manufacturer's PIL, Calcium 500 mg Effervescent Tablets; Accord-UK Ltd, electronic Medicines Compendium. Dated April 2020.
- Medicamentos Completo BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
Acerca del revisor

Sid Dajani
Sultan Dajani se graduó en la Escuela de Farmacia de Londres en 1994 y se convirtió en el miembro más joven elegido para el consejo de la Sociedad Real de Farmacia desde su fundación en 1842.
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