Serdolect® Tablets 4, 12, 16 and 20 mg
Consumer Medicine Information
NOTICE: This Consumer Medicine Information (CMI) is intended for persons
living in Australia. This page contains answers to some common
. It does
not contain all the information that is known about
. It does not take the
place of talking to your doctor or pharmacist. All medicines have risks
and benefits. Your doctor has weighed the risk of you using this medicine
against the benefits he/she expects it will have for you. If you have
any concerns about using this medicine, ask your doctor or pharmacist.
Bookmark or print this page, you may need to read it again.
What Serdolect is used for
Serdolect is used to treat schizophrenia, a mental illness with disturbances in thinking, emotional reactions and behaviour.
Serdolect belongs to a group of medicines called antipsychotics. It helps to correct certain chemical imbalances in the brain
which cause the symptoms of your illness.
Ask your doctor if you have any questions about why this medicine has been prescribed for you.
Your doctor may have prescribed it for another reason.
Serdolect is not addictive.
There is not enough information to recommend the use of this medicine for children and adolescents under the age of 18 years.
This medicine is available only with a doctor's prescription.
Before you take Serdolect
When you must not take it
Do not take Serdolect if you have an allergy to:
any medicine containing sertindole.
any of the ingredients listed at the end of this leaflet.
any other similar medicines.
Some of the symptoms of an allergic reaction may include shortness of breath, wheezing or difficulty breathing, swelling of
the face, lips, tongue or other parts of the body, or rash, itching or hives on the skin.
Do not take Serdolect if you have, or ever have had, any of the following medical conditions:
Disturbed water or salt balance (low potassium or low magnesium levels in the blood) which is currently not being treated
by your doctor
Severe blood vessel disease or severe heart disease such as heart failure, cardiac hypertrophy (thickening of the heart muscles),
arrhythmia (changes in the way the heart beats), or slow heart beat (less than 50 beats per minute)
Severe liver problems
Also do not take Sertindole if your doctor has recorded an electrocardiogram (ECG, a record of the electrical activity of
your heart) and has identified a prolongation of the QT interval (a certain part of an ECG). Such a condition may be hereditary
or may develop spontaneously.
Do not take Serdolect at the same time as medicines that may prolong the QT interval or may affect the amount of Serdolect
in your blood, such as:
Antiarrhythmic medicines, used to treat irregular heart beats, e.g. quinidine, amiodarone, disopyramide, procainamide, sotalol,
Antipsychotic medicines, used to treat certain mental and emotional conditions, e.g. thioridazine, chlorpromazine, droperidol,
Macrolide antibiotics, e.g. erythromycin, clarithromycin
Quinolone antibiotics, e.g. sparfloxacin.
Antihistamine medicines, used to prevent or relieve the symptoms of allergy (such as hay fever), e.g. terfenadine, astemizole
'Azole' antifungal medicines, e.g. ketoconazole, itraconazole, fluconazole.
Calcium channel blocker medicines, used to treat high blood pressure and angina, e.g. diltiazem, verapamil
Lithium, used to treat mood swings and some types of depressions
Medicines used to treat stomach problems, e.g. cisapride
Medicines used to treat HIV, e.g. indinavir, ritonavir, nelfinavir, saquinavir.
Anti-malarials, halofantrine and chloroquine
Anti-cancer agent, arsenic trioxide
Pentamidine, an anti-infective,
Bepridil, an anti-angina medicine,
Probucol, a drug to lower lipid levels.
Methadone and levomethadyl, opioid painkillers
An anti vomiting medicine, aprepitant
An anti-depressant, nefazodone
Do not take this medicine after the expiry date printed on the pack or if the packaging is torn or shows signs of tampering.
If it has expired or is damaged, return it to your pharmacist for disposal.
If you are not sure whether you should start taking Serdolect, talk to your doctor or pharmacist.
Before you start to take it
Before and during treatment with Serdolect, your doctor will conduct certain examinations in order to decide if treatment
with Serdolect is safe for you. These examinations include:
an electrocardiogram (ECG) of your heart to check that the QT interval is not prolonged. This test will usually be repeated
when you have been treated with Serdolect for approximately 3 weeks or when you reach a daily dose of 16 mg of Serdolect,
and again after 3 months. It will then be repeated at least every 12 months and if your dose is increased (as this can increase
QT prolongation) or if the dose of other medicines you may be taking is changed.
a blood sample to check the amount of magnesium and potassium in your blood may also be needed. If the amount is too low,
your doctor will need to treat this condition.
monitoring your blood pressure.
Your doctor may also monitor your weight and check your blood sugar level.
Tell your doctor if:
you have allergies to any other medicines, foods, preservatives or dyes.
have or have had any of the following medical conditions:
Diabetes mellitus or high blood sugar levels
Heart and blood vessel problems, including high blood pressure and stroke
A family history of diabetes, heart disease, stroke or blood clots
Parkinsonism, a disease of the brain affecting movement
Tardive dyskinesia, a reaction to some medicines with worm-like movements of the tongue, or other uncontrolled movements of
the mouth, tongue, cheeks or jaw which may progress to the arms and legs
Convulsions, fits or seizures
you are pregnant, or plan to become pregnant.
Like most medicines of this kind, Serdolect is not recommended for use during pregnancy unless clearly necessary. The general
condition of your baby might be affected by the use of this medicine.
The following symptoms may occur in newborn babies of mothers who have used Serdolect in the 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 should contact your doctor.
are breast-feeding or plan to breast-feed.
Sertindole, the active ingredient in Serdolect, passes into breast milk and therefore there is a possibility that your baby
may be affected. You should consider not breast-feeding while taking Sertindole. Your doctor will be able to advise you.
Also tell your doctor your age.
If you are over 65 years of age, your doctor will examine you for any heart or blood vessel problems.
If you have not told your doctor or pharmacist about any of the above, tell them before you start taking Serdolect.
Taking other medicines
Tell your doctor or pharmacist if you are taking any other medicines, including medicines that you get without a prescription
from a pharmacy, supermarket or health food shop.
Some medicines and Serdolect may interfere with each other. These include:
All medicines mentioned under When you must not take it at the beginning of this leaflet
Dopamine agonists, used to treat Parkinson's disease
Some SSRI medicines, e.g. fluoxetine and paroxetine, used to treat depression
Medicines used to treat epilepsy, such as carbamazepine, phenytoin and phenobarbitone
Rifampicin, an antibiotic most commonly used to treat tuberculosis
These medicines may be affected by Serdolect, or may affect how well it works. You may need different amounts of your medicines,
or you may need to take different medicines.
Your doctor and pharmacist have more information on medicines to be careful with or avoid while taking Serdolect.
How to take Serdolect
Follow all directions given to you by your doctor or pharmacist carefully.
They may differ from the information contained in this leaflet.
If you do not understand the instructions on the box, ask your doctor or pharmacist for help.
How much to take
The usual starting dose is 4 mg per day. Every 4 - 5 days, your doctor will increase the dose by 4 mg at a time, until a dose
is reached where Serdolect works best for you.
Long-term treatment (maintenance)
Generally the dose is 12 - 20 mg of Serdolect once a day. Your doctor will determine the dose depending on your response to
Your doctor will most likely increase your dose over a longer period of time than normally recommended. Possibly he/she will
also prescribe a lower maintenance dose.
Patients with liver problems
Your doctor may want to monitor you more closely and will most likely increase your dose over a longer period of time than
normally recommended. Possibly he/she will also prescribe a lower maintenance dose.
How to take it
Swallow the tablet whole with a full glass of water.
When to take it
Take Serdolect once a day at about the same time. This medicine can be taken with or without food.
How long to take it
Continue taking your tablets as long as your doctor tells you.
Serdolect helps control your condition, but the underlying illness may persist for a long time. If you stop your treatment
too soon your symptoms may return. Therefore, It is important to keep taking your medicine even if you feel well.
If you forget to take it
If it is almost time for your next dose, skip the dose you missed and take your next dose when you are meant to.
Otherwise, contact your doctor. He/she will make sure to restart your treatment the right way.
Do not take a double dose to make up for the dose that you missed.
If you are not sure what to do, ask your doctor or pharmacist.
If you have trouble remembering to take your medicine, ask your doctor or pharmacist for some hints.
If you take too much (overdose)
Immediately telephone your doctor or the Poisons Information Centre (Tel: 13 11 26 for Australia and Tel: 0800 764 766 for
New Zealand ) for advice, or go to Accident and Emergency at your nearest hospital, if you think that you or anyone else may
have taken too much Serdolect. Do this even if there are no signs of discomfort or poisoning.
You may need urgent medical attention.
Symptoms of an overdose may include increased fatigue, slurred speech, increased pulse and lowering of the blood pressure.
While you are taking Serdolect
Things you must do
If you are about to be started on any new medicine, remind your doctor and pharmacist that you are taking Serdolect.
Tell any other doctors, dentists and pharmacists who treat you that you are taking this medicine.
If you become pregnant while taking Serdolect, tell your doctor immediately.
Tell your doctor or mental health professional immediately, or go to the nearest hospital, if you have any of the following
suicidal thoughts or other mental/mood changes:
thoughts or talk of death or suicide
thoughts or talk of self-harm or harm to others
any recent attempts of self-harm
increase in aggressive behaviour, irritability or agitation
All mentions of suicide or violence must be taken seriously.
Tell your doctor immediately if you notice any worm-like movements of the tongue, or other uncontrolled movements of the tongue,
mouth, cheeks or jaw which may progress to the arms and legs.
These are symptoms of a condition called tardive dyskinesia, which may develop in people taking similar medicines, including
This condition is more likely to occur during long-term treatment with Serdolect, especially in elderly women. In very rare
cases, this may be permanent. However, if detected early, these symptoms are usually reversible.
Also tell your doctor if you experience palpitations (abnormal heart beat), if you faint or if you have a fit.
Your doctor may need to monitor you more closely during the treatment and may need to do an ECG test.
Tell your doctor if you experience vomiting or diarrhoea, or if you take diuretics (medicines used to treat high blood pressure
and fluid build-up, also called water tablets).
Your doctor may measure the amount of potassium in your blood.
Things you must not do
Do not take Serdolect to treat any other complaint unless your doctor tells you to.
Do not give your medicine to anyone else, even if they have the same condition as you.
Do not stop taking your medicine or lower the dosage without checking with your doctor.
Your doctor will decide when and how to stop your treatment, to avoid unpleasant symptoms that might occur if it is stopped
Things to be careful of
Be careful driving or operating machinery until you know how Serdolect affects you.
Generally this medicine does not make you sleepy, tired or drowsy, however it affects everyone differently. If you do feel
sleepy, tired or drowsy, do not drive, operate machinery or do anything else that might be dangerous.
It is not recommended that Sertindole be taken with alcohol.
If you feel light-headed, dizzy or faint when getting out of bed or standing up, get up slowly.
Standing up slowly, especially when you get up from bed or chairs, will help your body get used to the change in position
and blood pressure.
This feeling will most likely go away when you have taken Serdolect for a while, however if it continues or gets worse, talk
to your doctor.
Tell your doctor or pharmacist as soon as possible if you do not feel well while you are taking Serdolect.
This medicine helps most people with schizophrenia, but it may have unwanted side effects in some people. All medicines can
have side effects.
Sometimes they are serious, most of the time they are not. You may need medical attention if you get some of the side effects.
If you are over 65 years of age you may have an increased chance of getting certain side effects.
Do not be alarmed by the following lists of side effects. You may not experience any of them.
Ask your doctor or pharmacist to answer any questions you may have.
Tell your doctor or pharmacist if you notice any of the following and they worry you:
Runny or blocked nose, sneezing, facial pressure or pain
Dizziness or dizziness when standing up
Shortness of breath
Swelling of hands, ankles or feet
Tingling or numbness of the hands or feet, pins and needles
Decreased ejaculatory volume
palpitations or abnormal beating of your heart
Blood in your urine or discoloured urine.
The above list includes the more common side effects of Serdolect.
Tell your doctor immediately if you notice any of the following:
Increased thirst, drinking, or hunger
Excessive urination, blurred vision
Weakness or fainting
Fits or convulsions
Irregular heart beat
Worm-like movements of the tongue or other uncontrolled movements of the mouth, tongue, cheeks or jaws, which may progress
to the arms and legs
The above list includes serious side effects that may require medical attention. Serious side effects are uncommon.
If any of the following happen tell your doctor immediately, or go to Accident and Emergency at your nearest hospital:
Sudden increase in body temperature, extremely high blood pressure and fitting (seizures)
Sudden signs of allergy such as rash, itching or hives on the skin, swelling of the face, lips, tongue or other parts of the
body, shortness of breath, wheezing or trouble breathing
The above list includes very serious side effects. You may need urgent medical attention or hospitalisation. These side effects
Blood clots in the veins (especially in the legs, causing swelling, pain and redness in the leg), 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
Tell your doctor or pharmacist if you notice anything that is making you feel unwell.
Other side effects not listed above may also occur in some people.
Sertindole may have side effects that can affect your sexual activity and fertility. These are not long lasting effects. Any
problems related to your sexual activity should be discussed with your doctor.
After taking Serdolect
Keep Serdolect in the pack until it is time to take it.
If you take the tablets out of the pack they may not keep well.
Keep Serdolect in a cool dry place where the temperature stays below 25°C.
Keep Serdolect away from sunlight.
Do not store Serdolect or any other medicine in the bathroom or near a sink. Do not leave it on a window sill or in the car.
Heat and dampness can destroy some medicines.
Keep Serdolect where children cannot reach it.
A locked cupboard at least one-and-a-half metres above the ground is a good place to store medicines.
If your doctor tells you to stop taking this medicine or the expiry date has passed, ask your pharmacist what to do with any
medicine that is left over.
What it looks like
Serdolect 4 mg tablets are oval, yellow, biconvex film-coated tablets marked with "S4" on one side. It is available in blister
packs of 30 tablets.
Serdolect 12 mg tablets are oval, beige, biconvex film-coated tablets marked with "S12" on one side. It is available in blister
packs of 28 tablets.
Serdolect 16 mg tablets are oval, rose, biconvex film-coated tablets marked with "S16" on one side. It is available in blister
packs of 28 tablets.
Serdolect 20 mg tablets are oval, pink, biconvex film-coated tablets marked with "S20" on one side. It is available in blister
packs of 28 tablets.
Serdolect 4/12/16/20 mg tablets contain 4/12/16/20 mg sertindole as the active ingredient, respectively.
Serdolect tablets also contain:
Starch - maize
Cellulose - microcrystalline
Iron oxide yellow (4/12/20 mg tablets only)
Iron oxide red (12/16/20 mg tablets only)
Iron oxide black CI (20 mg tablets only)
This medicine does not contain sucrose, gluten, tartrazine or any other azo dyes.
Serdolect is made by H. Lundbeck A/S, Denmark.
Distributed in Australia by:
Lundbeck Australia Pty Ltd
1 Innovation Road,
North Ryde NSW 2113
Ph: +61 2 8669 1000
This leaflet was prepared on 7 June 2012.
Australian Registration Numbers:
4 mg - AUST R 127481
12 mg - AUST R 127484
16 mg - AUST R 127486
20 mg - AUST R 127488
"Serdolect" is the registered trademark of H. Lundbeck A/S.