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Cobicistat tablets for HIV

Tybost

Cobicistat is one of a number of medicines that you will need to take regularly for HIV.

Take one tablet each day.

Swallow the tablet with a drink of water after a meal.

Clinical Author's Note (Michael Stewart) 18/07/2018: new data shows that women who are pregnant and are taking cobicistat in combination with darunavir (Rezolsta® or Symtuza®) have lower blood levels of the medicines compared to other patients. This means there may be a risk of the treatment not working properly and of HIV being passed on to the unborn child. Women who are pregnant or may become pregnant should not take cobicistat/darunavir combinations and should speak to their doctor about alternative treatments. For more information please refer to the MHRA advice for healthcare professionals.

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About cobicistat

Tipo de medicamento

A pharmacokinetic enhancer

Usado para

Increasing the effect of atazanavir o darunavir, which are medicines used for HIV infection. Cobicistat can be used in adults and in children aged 12 years or older.

También llamado

Tybost®;
Combination brands: Evotaz® (cobicistat with atazanavir);
Genvoya®, Stribild® (cobicistat with emtricitabina, tenofovir and elvitegravir);
Rezolsta® (cobicistat with darunavir);
Symtuza® (cobicistat with darunavir, emtricitabine and tenofovir)

Disponible como

Comprimidos

Cobicistat is prescribed for infección por el virus de la inmunodeficiencia humana (VIH). HIV destroys cells in the body, called CD4 T cells. These cells are a type of white blood cell and are important because they are involved in protecting your body from infection. If left untreated, the HIV infection weakens your immune system so that your body cannot defend itself against bacteria, viruses and other germs. You will be prescribed three or more antiretroviral medicines at the same time, as taking a combination of different medicines is more effective than taking one alone, and also it reduces the risk that the HIV virus will become resistant to any individual medicine. Antiretroviral medicines slow the progress of HIV infection, but do not cure it.

Cobicistat will be prescribed for you by a doctor who is a specialist. You will also have been prescribed either atazanavir or darunavir for the HIV infection. Cobicistat is given to boost the effect of these medicines. Atazanavir and darunavir are both protease inhibitor antiretroviral medicines. Cobicistat helps to improve the effectiveness of these medicines by slowing down their breakdown in the body. This increases the amount of time atazanavir or darunavir is present in your body.

Some brands of cobicistat contain other antiretroviral medicines also (see the list in the table above). Taking one of these brands helps to reduce the number of tablets you need to take each day. Not all of the information in this leaflet applies to the combination brands - please refer to the manufacturer's printed information leaflet from inside the pack for full details about these brands. You will also find more information about each of the individual medicines on our website (see atazanavir, darunavir, emtricitabina, tenofovir).

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

  • Si estás embarazada, intentando concebir o amamantando.

  • Si tiene algún problema con el funcionamiento de su hígado, o si tiene problemas con el funcionamiento de sus riñones.

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

  • Si está tomando otros medicamentos. Esto incluye cualquier medicamento que se pueda comprar sin receta, así como medicamentos herbales y complementarios.

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

  • Take cobicistat exactly as your doctor tells you to. Take one tablet a day, at the same time as either atazanavir or darunavir.

  • Swallow the tablet whole with a drink of water. Take the tablet after a meal or a snack.

  • If you forget to take a dose, take it as soon as you remember, providing it is within 12 hours of the time you should have taken it. Remember to take the tablet with something to eat. However, if when you remember, it is more than 12 hours late, do not take the dose you missed but instead take your next dose when it is due. Do reportado take two doses together to make up for the forgotten dose.

  • Keep your regular appointments with your doctor so that your progress can be monitored. You are likely to need regular blood tests to check how well your medicines are working.

  • It is important that you continue to take your antiretroviral treatment regularly. This will help to prevent the HIV from becoming resistant to the medicines you are taking. Even if you miss only a small number of doses, the virus can become resistant to treatment.

  • If you develop an infection soon after you start the treatment, let your doctor know. As a result of taking antiretroviral medicines, your immune system may start fighting an infection which was present before you started the treatment, but which you may not have been aware of.

  • Aunque el tratamiento con medicamentos antirretrovirales puede reducir el riesgo de transmitir el VIH a otros a través del contacto sexual, no lo elimina por completo. Es importante que uses preservativos.

  • If you are trying for a baby or you become pregnant whilst taking cobicistat, let your doctor know straightaway. Your doctor may recommend a different treatment combination that could be more effective during pregnancy.

  • It is not uncommon for people with HIV to feel low or even depressed, especially soon after the diagnosis has been made and treatment has been started. If you have any feelings of depression, or any distressing thoughts about harming yourself then you should speak with your doctor de inmediato.

  • If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking cobicistat and antiretroviral medicines.

  • If you buy any medicines, supplements or herbal remedies 'over the counter', check with a pharmacist that they are suitable to take with cobicistat and your other medicines. This is because cobicistat can interfere with some medicines and stop them from working properly.

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Along 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 cobicistat. 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.

Very common cobicistat side-effects (these affect more than 1 in 10 people)


¿Qué puedo hacer si experimento esto?

Sentirse mal (náuseas)

Stick to simple meals - avoid fatty or spicy food

Yellowing of your skin or the whites of the eyes (jaundice)

Speak with your doctor as soon as possible

Common cobicistat side-effects (these affect fewer than 1 in 10 people)

¿Qué puedo hacer si experimento esto?

Dolor de cabeza

Bebe mucha agua y pide a un farmacéutico que te recomiende un analgésico adecuado. Si los dolores de cabeza continúan, informa a tu médico

Sintiéndose mareado, cansado o somnoliento

No conduzca ni utilice herramientas o máquinas mientras esté afectado

Being sick (vomiting), diarrhoea, stomach pain, indigestion, wind

Stick to simple meals - avoid fatty or spicy food

Increased appetite, changes in the way things taste, dry mouth, rash, difficulty sleeping, abnormal dreams

Si alguno de estos se vuelve problemático, hable con su médico

Cambios en algunos análisis de sangre

Su médico verificará estos

Si experimenta otros síntomas que cree que pueden deberse al medicamento, hable con su médico o farmacéutico para obtener más consejos.

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

  • Store the tablets in the original container in a cool, dry place, away from direct heat and light.

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, 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.

verificador de síntomas

¿Inseguro sobre mezclar medicamentos?

Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.

Lecturas adicionales y referencias

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Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.

  • Next review due: 19 Jan 2027
  • 20 Jul 2022 | Última versión

    Última actualización por

    Michael Stewart, MRPharmS

    Revisado por pares por

    Sid Dajani
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