What is a Patient Information Leaflet and why is it useful?

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Below is a text only representation of the Patient Information Leaflet. The original leaflet can be viewed using the link above.

The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: PL04425/0575.

Modecate Concentrate Injection 100mg/ml


Modecate® Concentrate 100mg/ml Injection

fluphenazine decanoate

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Phone 0845 372 7101 for help

Read all of this leaflet carefully before you start using this medicine

  • Keep this leaflet. You may need to read it again
  • If you have any further questions, ask your doctor, nurse or pharmacist
  • If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor, nurse or pharmacist

In this leaflet:

1. What Modecate Concentrate is and what it is used for
2. Before you are given Modecate Concentrate
3. How Modecate Concentrate is given
4. Possible side effects
5. How to store Modecate Concentrate
6. Further information

1. What Modecate Concentrate is and what it is used for

The name of your medicine is Modecate Concentrate 100ml/ml Injection (called Modecate Concentrate throughout this leaflet). Modecate Concentrate contains a medicine called fluphenazine decanoate. This belongs to a group of medicines called ‘phenothiazines’. It works by blocking the effect of a chemical in the brain.

Modecate Concentrate can be used for:

  • Schizophrenia - this illness can make you feel, see or hear things which do not exist, have strange and frightening thoughts, change how you act and make you feel alone. Sometimes people with these symptoms may also feel tense, anxious or depressed
  • Paranoid psychoses - this illness may make you feel very anxious or afraid for your own well-being.

2. Before you are given Modecate Concentrate

Do not have this medicine and tell your doctor if:

  • You are allergic (hypersensitive) to:
    • fluphenazine decanoate
    • other phenothiazine medicines
    • the other ingredients of Modecate (listed in Section 6 below)
      Signs of an allergic reaction include: a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue
  • You have a tumour on the adrenal gland called a ‘phaeochromocytoma’
  • You have ever had a stroke or mini stroke (otherwise known as a transient ischaemic attack or TIA)
  • You have severe heart problems
  • You have severe liver or kidney problems
  • You have severe depression
  • You have a blood disorder
  • You have been recently exposed to organophosphates

Do not have this medicine if any of the above apply to you. If you are not sure, talk to your doctor or nurse before being given Modecate Concentrate.

You should not be given Modecate Concentrate if you are in a coma.

Take special care with Modecate Concentrate

Check with your doctor or nurse before you have this medicine if:

  • You have liver or kidney problems
  • You have an uneven heartbeat or heart disease. If you or a member of your family has ever had heart disease, your doctor may carry out tests on your heart and blood before giving you this medicine
  • You or someone else in your family has a history of blood clots, as medicines like these have been associated with formation of blood clots
  • You have problems with your thyroid gland
  • You have severe breathing problems
  • You have brain damage
  • You have Parkinson’s disease
  • You have epilepsy
  • You have had problems with other medicines for psychotic diseases
  • You or members of your family have ever had glaucoma (painful eyes with blurred vision)
  • You have suddenly stopped drinking alcohol and are having signs of withdrawal. This may happen if you suddenly stop after drinking large amounts for a long time, or stop after a period of very heavy drinking
  • You have a form of muscle weakness called ‘myasthenia gravis’
  • You have an enlarged prostate gland. This means you may have problems when passing water (urine)
  • You are going to be exposed to very hot weather
  • You are elderly (65 years of age or older) particularly if you are in poor health or during very cold weather
  • You are going to have an operation soon

If you are not sure if any of the above apply to you, talk to your doctor or nurse before having Modecate Concentrate.

Taking other medicines

Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines. This includes medicines you buy without a prescription, including herbal medicines. This is because Modecate Concentrate can affect the way some other medicines work. Also some medicines can affect the way Modecate Concentrate works.

In particular, do not have this medicine and tell your doctor if you are taking:

  • Medicines to control your heartbeat (such as amiodarone, sotalol, procainamide, disopyramide or quinidine)
  • Medicines used for depression
  • Other medicines used to calm emotional and mental health problems such as chlorpromazine, lithium and pimozide
  • Some medicines used for infections such as sparfloxacin and pentamidine
  • Some medicines used for hay fever, rashes or other allergies called antihistamines (such as terfenadine)
  • Water tablets (diuretics)
  • Quinine - used for malaria

The following medicines can increase the chance of you getting side effects, when taken with Modecate Concentrate:

  • General anaesthetics - used during surgery
  • Medicines to help you sleep (sedatives, barbiturates)
  • Medicines for severe pain
  • Medicines used to prevent blood clotting (anticoagulants), such as warfarin. Your doctor may change your dose and may monitor your treatment closely
  • Digoxin — used for heart problems. Your doctor may change your dose and may monitor your treatment clos
  • Anticholinergic medicines — includes some medicines used for irritable bowel syndrome, asthma or incontinence
  • Corticosteroids used for inflammation such as hydrocortisone, betamethasone or prednisolone
  • Medicines used for muscle spasms such as suxamethonium, pancuronium and dantrolene
  • Medicines for high blood pressure
  • Some medicine used for HIV infection (protease inhibitors) such as amprenavir and indinavir
  • Cimetidine - for stomach ulcers or excess acid
  • Cocaine or Ecstasy (MDMA)
  • Phenylpropanolamine - used in colds and flu medicines

The following medicines can affect the way Modecate Concentrate works or Modecate Concentrate can affect the way some of these medicines work:

  • Some medicines used for life threatening allergic reactions or conditions such as adrenaline, dobutamine and dopamine
  • Medicines for Parkinson's disease (such as l-dopa, apomorphine, pergolide, lisuride, bromocriptine or cabergoline)
  • Medicines used for fits (epilepsy) such as phenytoin and carbamazepine
  • Medicines for diabetes
  • Medicines used to raise blood pressure (adrenergic vasoconstrictors) such as ephedrine and phenylephrine
  • Metrizamide - used to help with tests such as X-ray examinations
  • Amfetamines - used for Attention Deficit Hyperactive Disorder (ADHD)

Positron Emission Tomography (PET) Studies

Having Modecate Concentrate may affect the results PET studies carried out using labelled glucose. If you are going to have a PET study, it is important to tell your doctor you are having Modecate Concentrate.

Having Modecate Concentrate with food and drink

Do not drink alcohol while you are having Modecate Concentrate. This is because alcohol can increase the effects of Modecate Concentrate and cause serious breathing problems.

Pregnancy and breast-feeding

Talk to your doctor before taking this medicine if you are pregnant, might become pregnant, or think you may be pregnant. Modecate may cause an incorrect false negative result on a pregnancy test.

The following symptoms may occur in newborn babies, of mothers that have used Modecate Concentrate in the last trimester (last three months of their pregnancy): shaking, muscle stiffness and/or weakness, sleepiness, agitation, breathing problems, and difficulty in feeding. If your baby develops any of these symptoms you may need to contact your doctor.

You should not breast-feed if you are taking Modecate Concentrate. This is because small amounts may pass into mothers’ milk. If you are breast-feeding or planning to breast-feed, talk to your doctor or pharmacist before taking any medicine.

Ask your doctor or nurse for advice before taking any medicine if you are pregnant or breast-feeding.

Driving and using machines

You may feel sleepy, tired, have blurred eyesight or your ability to think or respond may be lowered after having this medicine. If this happens, do not drive or use any tools or machines.

Important information about some of the ingredients of Modecate Concentrate

Modecate Concentrate contains:

  • Sesame oil. This may cause severe allergic (hypersensitivity) reactions. The chances of this happening are rare. Tell a doctor or nurse straight away if you get a rash, swallowing or breathing problems and swelling of your lips, face, throat or tongue
  • Benzyl alcohol. Modecate Concentrate contains 15 mg/ml of benzyl alcohol. It must not be given to premature or newborn babies. Benzyl alcohol may cause toxic reactions and allergic reactions in infants and children up to 3 years old.

3. How Modecate Concentrate is given

Modecate Concentrate is normally given by a doctor or nurse. This is because it needs to be given as a deep injection into a muscle.

How much Modecate Concentrate is given

If you are not sure why you are being given Modecate Concentrate or have any questions about how much Modecate Concentrate is being given to you, speak to your doctor or nurse.

The usual dose is:

Adults Modecate Concentrate is usually given every 2 to 5 weeks.

  • Your first dose will be 12.5mg
  • This may be increased up to 100mg depending on your illness
  • The usual dose is 12.5 to 100mg

Elderly Your doctor will start you on a lower dose of 6.25mg


Modecate Concentrate should not be given to children.


Before and during treatment your doctor may want to carry out some tests. These might include blood tests and an ECG to check your heart is working properly.

If you have more Modecate Concentrate than you should

It is unlikely that your doctor or nurse will give you too much medicine. Your doctor and nurse will monitor your progress, and check the medicine you are given. Ask them if you are not sure why you are getting a dose of medicine.

Having too much Modecate Concentrate may make you feel drowsy and you may become unconscious. You may also feel very cold, have a fast or irregular heartbeat or severe muscle spasms. If you start getting any of these symptoms tell your doctor or nurse straight away. If you are away from the hospital, return straight away and speak to your doctor or nurse or go to the casualty department.

If you miss a dose of Modecate Concentrate

Your doctor or nurse will have instructions on when to give you this medicine. It is unlikely that you will not be given the medicine as it has been prescribed.

However, if you do think you have missed a dose, tell your doctor or nurse.

If you stop being given Modecate Concentrate

Keep having Modecate Concentrate until your doctor tells you to stop. If you stop having Modecate Concentrate, your illness may come back and you may have other effects after stopping such as feeling or being sick, sweating and difficulty sleeping. You may also get tics (such as muscle spasms in your face, rolling eyes, jerking muscles) or feel restless.

4. Possible side effects

Like all medicines, Modecate Concentrate can cause side effects, although not everybody gets them.

Tell a nurse or doctor straight away if you have;

  • An allergic reaction. The signs may include: a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue
  • Yellowing of the skin or eyes (jaundice)
  • A sudden high temperature or an infection due to low numbers of white blood cells. These could be signs of a problem called ‘leucopenia’
  • High temperature, sweating, stiff muscles, fast heartbeat, fast breathing and feel confused, drowsy or agitated. These could be signs of a serious side effect called ‘neuroleptic malignant syndrome’
  • Low temperature, unusually pale skin complexion, cold skin, uncontrollable shivering, slow breathing and slow heart beat. You may have low body temperature (hypothermia)
  • Bruise more easily than usual. This could be because of a blood disorder (thrombocytopenia)
  • Movements that you cannot control of the tongue, mouth, eyes, jaw, arms and legs
  • Feel tired, weak, confused and have muscles that ache, are stiff or do not work well. This may be due to low sodium levels in your blood or a condition called Syndrome of Inappropriate Anti-diuretic Hormone Secretion (SIADH)
  • Joint aches and pains, swollen joints, increased sensitivity to sunlight, mouth ulcers, hair loss, anxiety, fevers, night sweats, stomach pain, chest pain and shortness of breath. This could also be due to changes to your immune system or an immune condition called Systemic Lupus Erythematosus (SLE)
  • Fits
  • An uneven or fast heartbeat
  • Blood clots in the veins especially in the legs (symptoms include swelling, pain and redness in the leg), which may travel through blood vessels to the lungs causing chest pain and difficulty in breathing. If you notice any of these symptoms seek medical advice immediately.

Tell a nurse or doctor as soon as possible if you have any of the following side effects:

  • Rigid or stiff muscles, trembling or shaking, difficulty moving
  • Feeling dizzy, light-headed or faint (due to low blood pressure)
  • Changes in skin or eye colour after having Modecate for a long time
  • Swelling of the feet and legs (oedema)

Talk to your doctor or nurse if any of the following side effects gets serious or lasts longer than a few days:

  • Feeling drowsy or tired
  • Abnormal production of breast milk in men and women
  • Breast enlargement in men
  • Infrequent, light or loss of menstrual periods
  • Sexual problems
  • Difficulty sleeping (insomnia)
  • Feeling excited, agitated
  • Headache, stuffy nose, being sick (vomiting)
  • Difficulty passing water (urine) or lack of control over passing water
  • Blurred eyesight, dry mouth
  • Less ability to perform mental tasks or having poor judgement
  • Skin rashes
  • Constipation


  • Modecate can change the levels of liver enzymes or body fats such as cholesterol shown up on blood test
  • Blood tests may show changes to your immune system

As with other phenothiazine medicines, there have been very rare reports of sudden death with Modecate Concentrate. These are possibly caused by heart problems.

In elderly people with dementia, a small increase in the number of deaths has been reported for patients taking antipsychotics compared with those not receiving antipsychotics.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at:


By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Modecate Concentrate

This medicine will be kept by your doctor or pharmacist in a safe place where children cannot see or reach it. Store below 25°C, protected from light.

Do not use Modecate Concentrate after the expiry date, which is stated on the ampoule and the carton. The expiry date refers to the last day of the month.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.

6. Further Information

What Modecate Concentrate contains

  • Each 1ml of the injection contains 100mg of the active substance, fluphenazine decanoate
  • The other ingredients are sesame oil and benzyl alcohol

What Modecate Concentrate looks like and contents of the pack

Modecate Concentrate 100 mg/ml Injection is a pale yellow clear liquid supplied in 0.5ml and 1ml colourless glass ampoules with an OPC (one point cut) breaking system.

Not all pack sizes may be marketed.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder

One Onslow Street

Tel: 0845 372 7101


Bristol-Myers Squibb S.r.l.
Contrada Fontana del Ceraso
03012 Anagni (FR)

This leaflet does not contain all the information about your medicine. If you have any questions or are not sure about anything, ask your doctor or pharmacist.

This leaflet was last revised in 02/2015

© Sanofi, 1996- 2015