Fluphenazine long-acting injection
discontinued
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSLast updated 12 Dic 2022
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Clinical author's note Michael Stewart 05/12/2022: Modecate® injections were discontinued in the United Kingdom in November 2020. At the time of review there are no licensed injection products containing fluphenazine available in the UK. Fluphenazine injections may still be available in other countries or as special order products. This medicine leaflet is based on medical information available in the UK at the time of writing and is left here for reference purposes. Please also refer to the manufacturer's information supplied with your medicine.
Fluphenazine long-acting injection will be given to you by your clinic doctor or nurse every 2-5 weeks.
If you miss an appointment for an injection, make another appointment as soon as possible.
If you either start or stop smoking whilst you are being treated with fluphenazine, tell your doctor. Your dose may need to be adjusted.
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About fluphenazine long-acting injection
Tipo de medicamento | An antipsychotic injection |
Usado para | Maintenance of symptom control in adults with schizophrenia and other similar mental health problems |
También llamado | Fluphenazine decanoate; Modecate® (discontinued) |
Disponible como | Long-acting 'depot' injection |
Fluphenazine belongs to a group of medicines called antipsicóticos. You will have been prescribed it to maintain symptom control of esquizofrenia.
Schizophrenia is a mental health condition that causes disordered ideas, beliefs and experiences. Symptoms of schizophrenia include hearing, seeing, or sensing things that are not real, having mistaken beliefs, feeling unusually suspicious, and becoming withdrawn. Fluphenazine is used to relieve the symptoms of schizophrenia and other similar mental health problems. It works on the balance of chemical substances in your brain.
Long-acting, or 'depot', injections are used once your symptoms have been eased by taking tablets. The injection slowly releases fluphenazine into your body and is given every 2-5 weeks. The main advantage of a depot injection is that you do not have to remember to take tablets every day.
Before having fluphenazine long-acting injection
Volver al contenidoSome 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 having fluphenazine injections, it is important that your doctor knows:
Si estás embarazada o amamantando.
If you know you have a heart condition or blood vessel disease (such as any thickening of the arteries in your head).
Si tienes algún problema con el funcionamiento de tu hígado, o si tienes algún problema con el funcionamiento de tus riñones.
If you have prostate problems.
Si tienes un trastorno sanguíneo.
Si tienes algún problema con tu respiración.
If you have any of the following: epilepsy, depression, Parkinson's disease, raised pressure in your eye (glaucoma), thyroid problems, or a condition which causes muscle weakness, called myasthenia gravis.
If you have ever had yellowing of your skin or the whites of your eyes (jaundice).
Si tienes un tumor en la glándula suprarrenal (una condición llamada feocromocitoma).
Si ha tenido una reacción alérgica a un medicamento.
Si está tomando o usando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que esté disponible para comprar sin receta, así como medicamentos herbales y complementarios.
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How fluphenazine long-acting injection is given
Volver al contenidoBefore you start this treatment, ask to read the manufacturer's printed information leaflet from inside the pack. The leaflet will give you more information about fluphenazine, and it will also provide you with a full list of the side-effects which you could experience.
Fluphenazine long-acting injection will be given to you by a doctor or nurse. If you haven't received an injection like fluphenazine before, a small dose is usually given as a test 4-7 days before you have a full dose. This is to see how well you tolerate the injection. The injection is given into a muscle in your bottom (buttocks).
You may be asked to continue taking your currently prescribed tablets for a short while after you have had your first injection. This is because it can take a few weeks before you feel the full effect from the injection.
Treatment with fluphenazine is usually long-term so that your symptoms don't return.
Obteniendo el máximo de tu tratamiento
Volver al contenidoYour treatment will require careful monitoring to make sure that you get the best possible benefit from fluphenazine. Keep your regular doctor's appointments so that you get your injections on time, and your progress can be checked. If you miss an appointment for an injection, contact your doctor to arrange for another appointment as soon as possible.
Medicines similar to fluphenazine can cause people to become more sensitive to sunlight than normal. It is recommended that you avoid strong sunlight and sunbeds, and use a sun cream with a high sun protection factor even on bright but cloudy days.
If you drink alcohol, ask your doctor for advice about drinking while you are on fluphenazine. Alcohol can increase the chance that you experience side-effects and may not be advisable for you.
Smoking can interfere with the way your body handles fluphenazine. If you either start smoking or quit smoking whilst you are having fluphenazine, please make sure that you tell your doctor. It is probable that your dose will need to be adjusted.
If you have diabetes you may need to check your blood glucose more frequently, as fluphenazine can affect the levels of sugar in your blood. Your doctor will advise you about this.
If you are having any dental treatment or an operation, tell the person carrying out the treatment that you have had a fluphenazine injection. This is important because it may interfere with the anaesthetic or painkillers you receive.
If you buy or take any 'over-the-counter' medicines, check with a pharmacist that they are suitable for you to take with fluphenazine.
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Can fluphenazine long-acting injection 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 ones associated with fluphenazine. The best place to find a full list of the side-effects which can be associated with your injection, is from the manufacturer's printed information leaflet supplied with the medicine. Alternatively, you can find an example of a manufacturer's information leaflet in the reference section below. Speak with your doctor or pharmacist if any of the following continue or become troublesome.
Fluphenazine side-effects | ¿Qué puedo hacer si experimento esto? |
Pain at the site of the injection | This should not last long. If the area becomes red, swollen or 'lumpy', let your doctor know |
Feeling sleepy or dizzy, blurred vision | No conduzca ni utilice herramientas o máquinas mientras esté afectado |
Boca seca | Intenta masticar chicle sin azúcar o chupar caramelos sin azúcar |
Unusual or uncontrollable muscle movements, feeling shaky | Speak with your doctor about these |
Feeling restless, movement problems | Speak with your doctor |
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 |
Changes in weight, stuffy nose, difficulty sleeping, feeling agitated or confused, sexual problems, breast changes, menstrual problems, fast heartbeats, poor judgement or reduced mental ability, stomach upset, constipation, and difficulty passing urine | Consulte a su médico si alguno de estos le causa molestias |
Importante: if you experience symptoms such as muscle stiffness, a very high temperature, feeling confused or sweaty, a fast heartbeat, and urinary incontinence, you should contact your doctor immediately. These can be signs of a rare but serious condition known as neuroleptic malignant syndrome.
If you experience any other symptoms which you think may be due to the injection, speak with your doctor or pharmacist for further advice.
How to store fluphenazine long-acting injection
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
If you suspect that you have had an overdose of this medicine, contact the accident and emergency department of your local hospital for advice.
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.
Lecturas adicionales y referencias
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
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Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Próxima revisión: 11 Jun 2027
12 Dic 2022 | Última versión

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