Tabletas de hidroxicloroquina
Quinoric
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSLast updated 19 Dic 2022
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Swallow hydroxychloroquine tablets with a meal or a glass of milk.
Do not take indigestion remedies within four hours (before or after) of taking hydroxychloroquine.
Store hydroxychloroquine safely out of the reach and sight of children. It is harmful in overdose or if ingested accidentally by children.
At a glance
Hydroxychloroquine is a medicine used to treat inflammatory conditions like rheumatoid arthritis and lupus.
It suppresses the immune system to reduce pain and damage caused by these conditions.
Take tablets with food or milk to reduce stomach irritation and avoid crushing them.
You need regular eye checks as this medicine can affect your eyesight over time.
If you notice vision changes, stomach upset, or skin rash, tell your doctor.
Accidental ingestion or overdose is harmful; seek immediate medical advice.
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About hydroxychloroquine
Tipo de medicamento | Disease-modifying antirheumatic drug (DMARD) |
Usado para | Rheumatoid arthritis; juvenile arthritis; systemic and discoid lupus erythematosus; and skin conditions caused or aggravated by sunlight |
También llamado | Hydroxychloroquine sulfate; Quinoric® |
Disponible como | Comprimidos |
Hydroxychloroquine is used to treat a number of different inflammatory conditions, including artritis reumatoide, juvenile arthritis, and lupus erythematosus(lupus eritematoso sistémico (LES) and discoid erythematosus). These are all autoimmune diseases. This means that your immune system, which normally protects your body from infections, mistakenly attacks itself. This causes pain and damage to parts of your body, particularly your joints or skin. Hydroxychloroquine suppresses the immune reaction, and this helps to reduce the damage caused.
Before taking hydroxychloroquine
Volver al contenidoSome 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 hydroxychloroquine it is important that your doctor or pharmacist knows:
Si estás embarazada, intentando tener un bebé o amamantando.
If you have any problems with your kidneys or liver.
If you have any problems with your heart or your blood.
Si tienes epilepsia.
If you have problems with your eyes or eyesight, except for long- or short-sightedness.
If you have a problem with your stomach or intestines (a gastrointestinal problem).
If you have a skin disorder called psoriasis, or a condition causing muscle weakness (called myasthenia gravis), as these conditions can be made worse by hydroxychloroquine.
If you know you have glucose-6-phosphate dehydrogenase (G6PD) deficiency. This is an inherited disorder which causes problems after eating some foods, such as fava beans.
Si tienes un trastorno sanguíneo hereditario raro llamado porfiria.
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.
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How to take hydroxychloroquine
Volver al contenidoBefore you start this treatment, read the manufacturer's printed information leaflet from inside your pack. The leaflet will give you more information about treatment with hydroxychloroquine and a full list of side-effects which you may experience from taking it.
It is important that you take hydroxychloroquine exactly as your doctor tells you to. You may be prescribed one or two tablets to take each day. Your doctor or pharmacist will tell you which is right for you. Your dose will also be printed on the label of the pack to remind you.
Take the tablets at a mealtime, or alternatively swallow them with a glass of milk. This will help to stop you feeling queasy afterwards, as hydroxychloroquine may irritate your stomach. Do not crush or chew the tablets.
If you take a medicine for indigestion (such as an antacid), do not take it within the four hours before you take hydroxychloroquine, or within the four hours afterwards. This is because antacids interfere with the way hydroxychloroquine is absorbed by your body, making it less effective.
If you forget to take a dose, take it as soon as you remember. However, if when you remember, it is nearly time for your next dose then leave out the forgotten dose. Do not take two doses together to make up for a missed dose.
Obteniendo el máximo de tu tratamiento
Volver al contenidoTry to keep your regular appointments with your doctor. This is so your doctor can check on your progress. Your doctor is likely to check your vision before you start this treatment, and advise that you have an eye test once every year. This is because hydroxychloroquine can affect your eyesight when taken over a long period of time. If you notice any changes in your eyesight (such as your vision becoming blurred), you should inform your doctor as soon as possible.
If you have been prescribed hydroxychloroquine for skin problems worsened by sunlight, you will be advised to take it only during the periods when you are exposed to bright sunlight.
For conditions other than skin problems caused by sunlight, you may need to take hydroxychloroquine for several weeks before you start to notice an improvement in your condition. It can take several months before you feel the full benefit of the treatment. Continue to take the tablets regularly even when you start to feel better. If you stop before your doctor advises, your condition may worsen again. If, however, you feel no better after taking it for six months, you should discuss this with your doctor, as a different medicine may be more suitable for you.
If you buy any medicines, check with a pharmacist that they are suitable to take with hydroxychloroquine.
Hydroxychloroquine may stop the oral typhoid vaccine from working. If you are having any vaccinations, make sure the person treating you knows that you are taking this medicine.
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Can hydroxychloroquine cause problems?
Volver al contenidoAlong with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with hydroxychloroquine. 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 continue or become troublesome.
Común hydroxychloroquine side-effects | ¿Qué puedo hacer si experimento esto? |
Feeling sick (nausea), stomach pain, loss of appetite, diarrhoea | Remember to take the tablets after food or with a drink of milk. Stick to simple foods - avoid spicy or rich meals |
Dolor de cabeza | Bebe mucha agua y pide a tu farmacéutico que te recomiende un analgésico adecuado. Si los dolores de cabeza continúan, consulta a tu médico |
Eye problems (for example, blurred vision or sensitivity to light) | If this happens, do not drive and do not use tools or machines until your eyesight returns to normal. Let your doctor know about this as soon as possible |
Skin rash or itching | Si esto se vuelve problemático, hable con su médico |
Si experimenta otros síntomas que cree que pueden deberse a este medicamento, hable con su médico o farmacéutico.
How to store hydroxychloroquine
Volver al contenidoKeep all medicines out of the sight and reach of children. Hydroxychloroquine is harmful if ingested accidentally or if an overdose is taken. If this happens, get medical advice straightaway.
Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.
Información importante sobre todos los medicamentos
Volver al contenidoInformación 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 de inmediato 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.
Si compras algún medicamento, consulta con un farmacéutico que sean adecuados para tomar con tus otros medicamentos.
Si vas a someterte a una operación o a un tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás tomando.
No guardes medicamentos caducados o no deseados. Llévalos a tu farmacia local, que se encargará 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 Yellow Card website.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Preguntas frecuentes
Can I take hydroxychloroquine if I have kidney or liver problems?
If you have any problems with your kidneys or liver, it's important that your doctor or pharmacist knows before you start taking hydroxychloroquine. They will need to consider your condition when deciding if this medication is suitable for you.
What should I do if I forget to take my hydroxychloroquine tablet?
If you miss a dose, take it as soon as you remember. However, if it's almost time for your next dose, skip the forgotten one and continue with your regular schedule. Do not take two doses together to make up for a missed dose.
How long will it take for hydroxychloroquine to start working?
For conditions other than skin problems caused by sunlight, you might need to take hydroxychloroquine for several weeks before you notice an improvement. It can take several months to feel the full benefit of the treatment. It's important to continue taking the tablets regularly even after you start feeling better.
Is it safe to take indigestion remedies with hydroxychloroquine?
If you use medicines for indigestion, such as antacids, you should not take them within four hours before or four hours after taking hydroxychloroquine. This is because antacids can interfere with how your body absorbs hydroxychloroquine, making it less effective.
What if I experience blurred vision or changes in my eyesight while taking hydroxychloroquine?
If you notice any changes in your eyesight, such as blurring or increased sensitivity to light, you must inform your doctor as soon as possible. Your doctor is likely to check your vision before you start treatment and recommend yearly eye tests because this medicine can affect eyesight over time. If these issues occur, you should not drive or operate machinery until your vision returns to normal.
Can hydroxychloroquine affect my psoriasis or myasthenia gravis?
Hydroxychloroquine can potentially worsen certain conditions, including psoriasis or myasthenia gravis (a condition causing muscle weakness). You must inform your doctor if you have either of these conditions before starting treatment.
What should I do if I don't feel better after six months of taking hydroxychloroquine?
If you have been taking hydroxychloroquine for six months and have not noticed an improvement in your condition, you should discuss this with your doctor. They may suggest a different medicine that could be more suitable for you.
Lecturas adicionales y referencias
- Manufacturer's PIL, Hydroxychloroquine sulfate 200 mg film-coated Tablets; Zentiva, The electronic Medicines Compendium. Dated February 2022.
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
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About the authorView full bio

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.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Próxima revisión: 18 Jun 2027
19 Dic 2022 | Última versión

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