QUDIX 100 mg FILM-COATED TABLETS

Introduction

PACKAGE LEAFLET: INFORMATION FOR THE USER

Qudix 100 mg film-coated tablets EFG

Quetiapine

Read the entire leaflet carefully before you start taking this medicine, as it contains important information for you.

• Keep this leaflet, as you may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you. Do not pass it on to others, as it may harm them, even if their symptoms are the same as yours.
• If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of the pack:

1. What is Qudix
2. What you need to know before taking Qudix
3. How to take Qudix
4. Possible side effects
5. Storing Qudix
6. Contents of the pack and further information

1. What Qudix is and what it is used for

Qudix contains a substance called quetiapine. It belongs to a group of medicines called antipsychotics. Qudix can be used to treat several diseases, such as:

• Bipolar depression: where you feel sad. You may find that you feel depressed, guilty, lack energy, lose your appetite, or cannot sleep.
• Mania: where you may feel very excited, elated, agitated, enthusiastic, or hyperactive, or show poor judgment, including being aggressive or violent.
• Schizophrenia: where you may hear or feel things that are not there, believe things that are not true, or feel abnormally suspicious, anxious, confused, guilty, tense, or depressed.

Your doctor may continue to prescribe Qudix for you even when you feel better.

2. What you need to know before taking Qudix

Do not take Qudix:

• If you are allergic (hypersensitive) to quetiapine or any of the other ingredients of Qudix (listed in section 6).

• If you are taking any of the following medicines:

• some medicines for HIV
• azole-type medicines (for fungal infections)
• erythromycin or clarithromycin (for infections)
• nefazodone (for depression).

Do not take Qudix if any of the above applies to you. If you are unsure, consult your doctor or pharmacist before taking Qudix.

Warnings and precautions

Consult your doctor or pharmacist before starting to take Qudix if:

• If you have depression or other conditions that are treated with antidepressants. The use of these medicines with Qudix may cause serotonin syndrome, a potentially life-threatening condition (see "Other medicines and Qudix").
• You, or a family member, have or have had any heart problems, such as heart rhythm problems, heart muscle weakness, or heart inflammation, or if you are taking any medicine that may affect your heart rhythm.
• You have low blood pressure.
• You have had a stroke, especially if you are elderly.
• You have liver problems.
• You have ever had a seizure (convulsion).
• You have diabetes or are at risk of developing diabetes. If so, your doctor may monitor your blood sugar levels while you are taking quetiapine.
• You know that you have had low white blood cell counts in the past (which may or may not have been caused by other medicines).
• You are an elderly person with dementia (loss of brain function). If so, you should not take quetiapine because the group of medicines that Qudix belongs to may increase the risk of stroke, or in some cases the risk of death, in these people.
• You or a family member have a history of blood clots, as medicines like this have been associated with the formation of blood clots.

Tell your doctor immediately if, after taking Qudix, you experience any of the following:

• A combination of fever, severe muscle stiffness, sweating, or a decrease in consciousness level (a disorder called "neuroleptic malignant syndrome"). Immediate medical treatment may be necessary.
• Uncontrolled movements, mainly of your face or tongue.
• Dizziness or feeling very drowsy. This may increase the risk of accidental injury (falls) in elderly patients.
• Seizures (convulsions).
• A prolonged and painful erection (priapism).
• Fast and irregular heartbeats, even when resting, palpitations, breathing problems, chest pain, or unexplained tiredness. Your doctor should examine your heart and, if necessary, refer you to a cardiologist immediately.

These disorders may be caused by this type of medicine.

Tell your doctor as soon as possible if you have:

• Fever, flu-like symptoms, sore throat, or any other infection, as it could be a consequence of a very low white blood cell count and may require interruption of treatment with quetiapine and/or additional treatment.
• Constipation along with persistent abdominal pain, or constipation that has not responded to treatment, as it could lead to a more severe intestinal blockage.

Thoughts of suicide and worsening of your depression

If you are depressed, you may sometimes think of harming or killing yourself. This may increase when you first start treatment, as all these medicines take time to work, usually around two weeks but sometimes longer. These thoughts may also increase if you stop taking your medication abruptly. You may be more likely to think this way if you are a young adult. Information from clinical trials has shown an increased risk of suicidal thoughts and/or suicidal behavior in young adults under 25 with depression.

If at any time you think of harming or killing yourself, contact your doctor or go to a hospital immediately. It may be helpful to tell a relative or close friend that you are depressed and ask them to read this leaflet. You can ask them to tell you if they think your depression is getting worse, or if they are worried about changes in your behavior.

Weight gain

Weight gain has been observed in patients taking quetiapine. You and your doctor should regularly check your weight.

Children and adolescents

Qudix should not be used in children and adolescents under 18 years of age.

Using Qudix with other medicines

Tell your doctor if you are taking, have recently taken, or might take any other medicines.

Do not take Qudix if you are using any of the following medicines:

• Some medicines for HIV.
• Azole-type medicines (for fungal infections).
• Erythromycin or clarithromycin (for infections).
• Nefazodone (for depression).

Tell your doctor if you are using any of the following medicines:

• Medicines for epilepsy (such as phenytoin or carbamazepine).
• Medicines for high blood pressure.
• Barbiturates (for difficulty sleeping).
• Thioridazine or lithium (other antipsychotic medicines).
• Medicines that affect your heart rhythm, such as medicines that can cause an imbalance in electrolytes (low potassium or magnesium levels), such as diuretics (medicines to urinate) or certain antibiotics (medicines to treat infections).
• Medicines that can cause constipation.
• Antidepressants. These medicines may interact with Qudix, and you may experience symptoms such as involuntary muscle contractions, agitation, hallucinations, coma, excessive sweating, tremors, exaggerated reflexes, increased muscle tension, and body temperature above 38°C (serotonin syndrome). Contact your doctor if you experience these symptoms.

Before stopping any of your medicines, consult your doctor first.

Taking Qudix with food, drinks, and alcohol

• Qudix can be taken with or without food.
• Be careful with the amount of alcohol you drink. This is because the combined effect of Qudix and alcohol may make you drowsy.
• Do not drink grapefruit juice while taking Qudix. It may affect how the medicine works.

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor before using this medicine. You should not take Qudix during pregnancy, unless your doctor has advised you to do so. You should not use Qudix if you are breastfeeding.

The following symptoms, which may represent a withdrawal syndrome, may appear in newborn babies of mothers who have used quetiapine in the last trimester (last three months of pregnancy): tremors, muscle stiffness and/or weakness, drowsiness, agitation, breathing problems, and feeding difficulties. If your newborn develops any of these symptoms, you may need to contact your doctor.

Driving and using machines

These tablets may make you feel drowsy. Do not drive or use tools or machines until you know how the tablets affect you.

Qudix contains lactose

If your doctor has told you that you have an intolerance to some sugars, consult them before taking this medicine.

Effect on urine drug screening tests

If you are undergoing a urine drug screening test, taking quetiapine may produce positive results for methadone or certain antidepressants called tricyclic antidepressants (TCAs) when some analysis methods are used, even if you are not taking methadone or TCAs. If this happens, a more specific test can be performed.

3. How to take Qudix

Follow the instructions for taking this medicine exactly as your doctor has told you. If you are unsure, consult your doctor or pharmacist again. Your doctor will decide your initial dose. The maintenance dose (daily dose) will depend on your illness and needs, but it is usually between 150 mg and 800 mg.

• You will take your tablets once a day, at bedtime, or twice a day, depending on your illness.
• Swallow your tablets whole with water.
• You can take the tablets with or without food.
• Do not drink grapefruit juice while taking Qudix. It may affect how the medicine works.
• Do not stop taking your tablets even if you feel better, unless your doctor tells you to.

Liver problems

If you have liver problems, your doctor may change your dose.

Elderly people

If you are elderly, your doctor may change your dose.

Use in children and adolescents

Qudix should not be used in children and adolescents under 18 years of age.

If you take more Qudix than you should

If you take more Qudix than your doctor has prescribed, you may feel drowsy, dizzy, and experience abnormal heartbeats. Contact your doctor or the nearest hospital immediately. Take the Qudix tablets with you.

You can also call the Toxicology Information Service, phone 91 562 04 20, indicating the medicine and the amount taken.

If you forget to take Qudix

If you forget to take a dose, take it as soon as you remember. If it is almost time for your next dose, wait until then. Do not take a double dose to make up for the forgotten tablet.

If you stop taking Qudix

If you stop taking Qudix abruptly, you may be unable to sleep (insomnia), or you may feel nauseous, or you may experience headaches, diarrhea, vomiting, dizziness, or irritability. Your doctor may suggest gradually reducing the dose before stopping treatment.

If you have any further questions about the use of this medicine, ask your doctor or pharmacist.

4. Possible Adverse Effects

Like all medicines, this medicine can cause adverse effects, although not all people suffer from them.

Very Common Adverse Effects(may affect more than 1 in 10 people):

• Dizziness (which could lead to falls), headache, dry mouth.
• Feeling of drowsiness (which may disappear over time as you continue taking quetiapine), (could lead to falls).
• Withdrawal symptoms (symptoms that occur when you stop taking quetiapine), which include inability to sleep (insomnia), feeling nauseous, headache, diarrhea, vomiting, dizziness, and irritability. A gradual withdrawal over a period of at least 1 to 2 weeks is advised.
• Weight gain.
• Abnormal muscle movements. These include difficulty starting muscle movements, tremors, feeling of restlessness or muscle stiffness without pain.
• Changes in the amount of certain fats (triglycerides and total cholesterol).

Common Adverse Effects(may affect up to 1 in 10 people):

• Fast heartbeat.
• Feeling like your heart is beating strongly, beating fast, or has skipped beats.
• Constipation, upset stomach (indigestion).
• Feeling of weakness.
• Swelling of arms or legs.
• Low blood pressure when standing up. This can make you feel dizzy or faint (could lead to falls).
• Increased blood sugar levels.
• Blurred vision.
• Abnormal dreams and nightmares.
• Feeling more hungry.
• Feeling irritated.
• Disorder of speech and language.
• Suicidal thoughts and worsening of your depression.
• Shortness of breath.
• Vomiting (mainly in elderly people).
• Fever.
• Changes in the amount of thyroid hormones in the blood.
• Decrease in the number of certain types of blood cells.
• Increases in the amount of liver enzymes measured in the blood.
• Increases in the amount of prolactin hormone in the blood. The increases in prolactin hormone could, in rare cases, lead to the following:

• Both in men and women, having swollen breasts and unexpected milk production.
• In women, not having menstrual periods or having irregular periods.

Uncommon Adverse Effects(may affect up to 1 in 100 people):

• Seizures or convulsions.
• Allergic reactions that can include swollen hives, skin swelling, and swelling around the mouth.
• Unpleasant sensations in the legs (also called restless legs syndrome).
• Difficulty swallowing.
• Uncontrolled movements, mainly of your face or tongue.
• Sexual dysfunction.
• Diabetes.
• Change in the electrical activity of the heart seen on the ECG (prolongation of the QT interval).
• Slower than normal heart rate that can occur at the start of treatment and may be associated with low blood pressure and fainting.
• Difficulty urinating.
• Fainting (could lead to falls).
• Stuffy nose.
• Decrease in the number of red blood cells in the blood.
• Decrease in the amount of sodium in the blood.

Rare Adverse Effects(may affect up to 1 in 1,000 people):

• A combination of high temperature (fever), sweating, muscle stiffness, feeling very drowsy or dizzy (a disorder called "neuroleptic malignant syndrome").
• Yellowish color in the skin and eyes (jaundice).
• Liver inflammation (hepatitis).
• Prolonged and painful erection (priapism).
• Swollen breasts and unexpected milk production (galactorrhea).
• Menstrual disorder.
• Blood clots in the veins, especially in the legs (symptoms include swelling, pain, and redness in the leg), which can travel through the blood vessels to the lungs, causing chest pain and difficulty breathing. If you notice any of these symptoms, seek medical attention immediately.
• Walking, talking, eating, or other activities while you are asleep.
• Decrease in body temperature (hypothermia).
• Pancreas inflammation.
• A condition (called "metabolic syndrome") in which you may have a combination of 3 or more of the following effects: increased fat around your abdomen, decrease in "good" cholesterol (HDL-C), increase in a type of fat in the blood called triglycerides, increase in blood pressure, and increase in blood sugar.
• A combination of fever, flu-like symptoms, sore throat, or any other infection with a very low white blood cell count, a condition called agranulocytosis.
• Intestinal obstruction.
• Increase in creatine phosphokinase in the blood (a substance found in muscles).

Very Rare Adverse Effects(may affect up to 1 in 10,000 people):

• Severe rash, blisters, or red spots on the skin.
• Severe allergic reaction (called anaphylaxis) that can cause difficulty breathing or shock.
• Rapid swelling of the skin, usually around the eyes, lips, and throat (angioedema).
• A severe condition of blisters on the skin, mouth, eyes, and genitals (Stevens-Johnson syndrome).
• Inappropriate secretion of a hormone that controls urine volume.
• Breakdown of muscle fibers and muscle pain (rhabdomyolysis).
• Worsening of pre-existing diabetes.

Unknown Frequency

• Red spots on the skin with irregular edges (erythema multiforme).
• Sudden and severe allergic reaction with symptoms such as fever and blisters on the skin and skin peeling (toxic epidermal necrolysis).
• Withdrawal symptoms may occur in newborns of mothers who have used quetiapine during their pregnancy.
• Drug rash with eosinophilia and systemic symptoms (DRESS). Widespread rash, elevated body temperature, elevated liver enzymes, blood abnormalities (eosinophilia), enlarged lymph nodes, and other organs involved (drug rash with eosinophilia and systemic symptoms, also known as DRESS). If you develop these symptoms, stop using quetiapine and contact your doctor or seek immediate medical attention.
• Heart muscle disorder (cardiomyopathy).
• Inflammation of the heart muscle (myocarditis).
• Inflammation of the blood vessels (vasculitis), often with a skin rash with small red or purple spots.

The class of medicines to which Qudix belongs can cause heart rhythm problems that can be serious and, in severe cases, potentially fatal.

Some adverse effects are only observed when a blood test is performed. These include changes in the amount of certain fats (triglycerides and total cholesterol) or sugar in the blood, changes in the amount of thyroid hormones in your blood, increase in liver enzymes, decrease in the number of certain types of blood cells, decrease in the number of red blood cells, increase in creatine phosphokinase in the blood (a substance found in muscles), decrease in the amount of sodium in the blood, and increases in the amount of prolactin hormone in the blood. The increases in prolactin hormone could, in rare cases, lead to the following:

• Both in men and women, having swollen breasts and unexpected milk production.
• In women, not having menstrual periods or having irregular periods.

Your doctor may ask you to have blood tests from time to time.

Adverse Effects in Children and Adolescents

The same adverse effects that can occur in adults can also occur in children and adolescents.

The following adverse effects have been observed more frequently in children and adolescents or have not been observed in adults:

Very Common Adverse Effects(may affect more than 1 in 10 people):

• Increased amount of a hormone called prolactin in the blood. The increases in prolactin hormone could, in rare cases, lead to the following:
• • Both in boys and girls, having swollen breasts and unexpected

milk production.

• • In girls, not having menstrual periods or having irregular periods.
• Increased appetite.
• Vomiting.
• Abnormal muscle movements. These include difficulty starting muscle movements, tremors, feeling of restlessness or muscle stiffness without pain.
• Increased blood pressure.

Common Adverse Effects(may affect up to 1 in 10 people):

• Feeling of weakness, fainting (could lead to falls).
• Stuffy nose.
• Feeling irritated.

Reporting of Adverse Effects

If you experience any type of adverse effect, consult your doctor, pharmacist, or nurse, even if it is a possible adverse effect that is not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.

5. Storage of Qudix

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiration date that appears on the packaging after CAD. The expiration date is the last day of the month indicated.

No special storage conditions are required.

Medicines should not be disposed of via wastewater or household waste. Deposit the packaging and medicines you no longer need at the SIGRE collection point in your pharmacy. In case of doubt, ask your pharmacist how to dispose of the packaging and medicines you no longer need. This will help protect the environment.

6. Package Contents and Additional Information

Composition of Qudix

The active ingredient is quetiapine. The tablets contain 100 mg of quetiapine (as quetiapine hemifumarate).

The other ingredients are:

Core of the tablet: lactose monohydrate (lactose), microcrystalline cellulose, povidone, sodium starch glycolate (Type A) (potato starch), glycerol dibehenate, anhydrous colloidal silica, and magnesium stearate.

Coating:lactose monohydrate (lactose), hypromellose, titanium dioxide (E171), macrogol 4000, and yellow iron oxide (E172).

Appearance of Qudix and Package Contents

The tablets are round, biconvex, scored on one side, and yellow in color. The tablet can be divided into equal doses.

They are available in packages of 60 tablets.

Marketing Authorization Holder and Manufacturer

Marketing Authorization Holder

Adamed Laboratorios, S.L.U.

c/ de las Rosas de Aravaca, 31 – 2ª planta

28023 Aravaca – Madrid

Manufacturer

Neuraxpharm Pharmaceuticals, S.L.

Avda. de Barcelona, 69

08970 Sant Joan Despí - Barcelona

Date of the Last Revision of this Leaflet:June 2024.

Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/