Quinine for malaria
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSLast updated 16 de junio de 2024
Cumple con las directrices editoriales
- DescargarDescargar
- Compartir
- Language
- Discusión
- Versión en audio
- Add to preferred sources on Google
Quinine is prescribed to treat malaria in people who have been bitten by an infected mosquito. It is not suitable for preventing malaria.
Quinine is an ingredient of drinks such as tonic water and bitter lemon - try to avoid these while you are taking quinine tablets.
Contact a doctor inmediatamente if anyone swallows quinine by accident, or if you take more than the prescribed dose.
At a glance
Quinine is a medicine used to treat the serious infection malaria.
Take quinine exactly as your doctor tells you, spacing the doses evenly throughout the day.
Always finish the course of medicine, even if you start to feel better.
Tell your doctor if you experience hearing issues, ringing in your ears, headaches, nausea, or vision problems.
If you suspect an overdose or accidental swallowing, seek immediate medical help.
En este artículo:
Video picks for Medicamentos para el tratamiento de infecciones
Continúa leyendo abajo
About quinine for malaria
Tipo de medicamento | An antimalarial medicine |
Usado para | To treat malaria |
También llamado | Quinine bisulfate, quinine dihydrochloride, quinine sulfate |
Disponible como | Tabletas y inyección |
Malaria is a very serious infection which you can develop from a bite from an infected mosquito. The most common symptom is high temperature (fever) and a flu-like illness. Malaria can occur even up to a year after travelling in an area in which there is malaria. Prompt treatment for malaria is essential. If you feel unwell and have recently visited an area in which there is malaria, you should seek prompt medical advice, even if you have taken your antimalarial medication correctly.
Malaria is caused by a parasite called plasmodium. The parasite lives inside the stomach of an infected female mosquito and is passed to humans from a mosquito bite. There are four types of plasmodium that cause malaria. Of the four, Plasmodium falciparum is usually the most serious, so this type of malaria is likely to be treated in hospital.
Quinine is also used to treat night-time leg cramps. For information about this please see the medicine leaflet Quinina para calambres en las piernas.
Before taking quinine
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 quinine it is important that your doctor knows:
Si estás embarazada o amamantando.
If you have any problems with your eyes, or with your hearing.
If you have a heart condition, such as an irregular heart rhythm.
If you have any problems with the way your kidneys work, or any problems with the way your liver works.
If you have blood in your urine.
If you have been told you have an imbalance of salt levels in your blood.
Si tienes una condición que causa debilidad muscular, llamada miastenia gravis.
If you have glucose 6-phosphate dehydrogenase deficiency. This is a genetic disorder where there is a lack of an enzyme often known as G6PD. People with this disorder have problems after eating foods such as fava beans.
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.
If you have ever had an allergic reaction to a medicine, or if you have had a bad reaction to quinine in tonic water or any other soft drink.
Continúa leyendo abajo
How to take quinine
Volver al contenidoBefore you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about quinine and will provide you with a full list of the side-effects which you may experience from taking it.
Take quinine exactly as your doctor tells you to. If you are being treated in hospital, your nurse will tell you when your tablets are due. If you are being treated at home, your doctor or pharmacist will tell you how many tablets to take for each dose, and when the doses should be taken. Your dose will also be printed on the label of the pack to remind you about what the doctor said to you. Space the doses evenly throughout the day and continue to take the tablets until the course is finished, unless your doctor tells you to stop sooner. It is important you do this even if you feel better. It is to make sure that all of the parasite has been removed from your body.
Swallow your doses with a drink of water. You can take quinine tablets either before or after meals.
If you forget to take a dose, take it as soon as you remember. Try to take the correct number of doses each day but do not take two doses at the same time to make up for a missed dose.
Obteniendo el máximo de tu tratamiento
Volver al contenidoIf you are being treated from home, make sure you keep your regular appointments with your doctor. This is so your doctor can check on your progress.
Your doctor will discuss with you the possibility of unwanted side-effects of the treatment. It is important that you let your doctor know, antes you take your next dose, if you experience any of the following: impaired hearing, ringing noises in your ear, headaches, feeling sick (nausea), or any problems with your eyesight.
Quinine is present in drinks such as tonic water and bitter lemon. It is probably best to avoid these drinks while you are taking quinine tablets.
Never take more than the prescribed dose. Taking too much quinine can cause serious problems. Also, quinine is dangerous if it is taken by a child, so keep the tablets away from children. If you suspect that someone has taken an overdose of quinine or has swallowed some by accident, you must contact a doctor de inmediato. Alternatively, go to the accident and emergency department of a local hospital. No se demore. Lleve el recipiente con usted, incluso si está vacío. Esto es para que el médico sepa qué se ha tomado.
If you buy any medicines, always check with a pharmacist that they are suitable to take with your other medicines. This is because some medicines (such as cimetidine which is taken for heartburn) can interfere with quinine and increase the risk of serious side-effects.
If you are being treated for diabetes, quinine can lower the level of sugar in your blood. Your doctor will be able to advise you about this.
Continúa leyendo abajo
Can quinine 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 side-effects associated with quinine. You will find a full list in the manufacturer's information leaflet supplied with your medicine. Although unwanted effects often improve as your body adjusts to a new medicine, serious side-effects do still sometimes occur. Contact your doctor for advice as soon as possible if you experience any of the following:
Quinine side-effects | ¿Qué puedo hacer si experimento esto? |
Diarrhoea, feeling sick (nausea), feeling weak or confused, 'ringing' in your ears, headache, having a spinning sensation (vertigo) | Tell your doctor as soon as possible |
Vision problems, such as blurred vision and colour changes | Tell your doctor as soon as possible. Do not drive while your vision is affected |
Hot and flushed skin, rashes, muscle weakness, increased sensitivity to light | Si alguno de estos se vuelve problemático, informe a su médico |
Difficulty breathing, swelling around your mouth or face | Speak with your doctor de inmediato - these are signs of an allergy to quinine |
Unexplained bleeding, unusual bruising, sore throats or infections | Tell your doctor as soon as possible - these could be signs of a serious blood disorder and your doctor will want to check for this |
Si experimenta cualquier otro síntoma que crea que puede deberse a las tabletas, por favor hable con su médico o farmacéutico para obtener más consejos.
How to store quinine
Volver al contenidoMantenga 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.
Información importante sobre todos los medicamentos
Volver al contenidoInformación importante sobre todos los medicamentos
Si vas a someterte a una operación o tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás usando.
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, 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
What is the primary purpose of quinine in treating malaria?
Quinine is an antimalarial medicine used specifically to treat malaria, a serious infection caused by a parasite from an infected mosquito bite.
Will I be treated for malaria in hospital or at home?
Your treatment setting depends on the type of malaria you have. If you contract Plasmodium falciparum malaria, which is usually the most serious type, you are likely to be treated in hospital. For other types, you might be treated at home, but your doctor or nurse will guide you on how to take the medication.
Are there any drinks or foods I should avoid while taking quinine?
While taking quinine tablets, it's best to avoid drinks that also contain quinine, such as tonic water and bitter lemon. If you have glucose 6-phosphate dehydrogenase deficiency, you should avoid foods like fava beans, as they can cause problems.
What should I do if my symptoms improve before I finish the course of quinine?
It is very important to continue taking quinine tablets until the course is finished, even if you feel better. This ensures that all of the malaria parasite has been removed from your body and prevents the infection from returning.
Can I take other medicines or supplements while I'm on quinine?
You should tell your doctor about all medicines you are currently taking, including those bought without a prescription, as well as herbal and complementary medicines. Some medicines, like cimetidine (for heartburn), can interfere with quinine and increase the risk of serious side-effects. Always check with a pharmacist if any new medicines are suitable to take with quinine.
What should I do if I accidentally take too much quinine or a child swallows it?
If you suspect an overdose of quinine or if a child has swallowed some by accident, you must contact a doctor straightaway or go to the accident and emergency department of your local hospital without delay. Take the medicine container with you so the medical staff know what has been taken.
How will I know if quinine is causing a serious problem, and what should I do?
Contact your doctor for advice as soon as possible if you experience any of the following: vision problems (like blurred vision, color changes), difficulty breathing, swelling around your mouth or face, unexplained bleeding, unusual bruising, sore throats, or infections. These could indicate serious side-effects or an allergic reaction, and serious side-effects do sometimes occur even if they are not common for everyone.
Lecturas adicionales y referencias
- Manufacturer's PIL, Quinine Sulfate Tablets 300 mg; Strides Pharma UK Ltd, The electronic Medicines Compendium. Dated May 2022.
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
Continúa leyendo abajo
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.
Siguiente revisión prevista: 16 de junio de 2027
16 de junio de 2024 | Última versión

Pregunta, comparte, conecta.
Navega por discusiones, haz preguntas y comparte experiencias en cientos de temas de salud.
Suscríbete al boletín de Patient
Tu dosis semanal de consejos de salud claros y confiables, escritos para ayudarte a sentirte informado, seguro y en control.
By subscribing you accept our Política de Privacidad. Puedes darte de baja en cualquier momento. Nunca vendemos tus datos.