Seroxat

Leaflet accompanying the packaging: patient information

Seroxat, 20 mg, coated tablets

Paroxetine

Read the leaflet carefully before taking the medicine, as it contains important information for the patient.

• Keep this leaflet, so you can read it again if you need to.
• If you have any doubts, consult your doctor or pharmacist.
• This medicine has been prescribed specifically for you. Do not pass it on to others. The medicine may harm another person, even if their symptoms are the same as yours.
• If the patient experiences any side effects, including any not listed in this leaflet, they should tell their doctor or pharmacist. See section 4.

Table of contents of the leaflet

• 1. What is Seroxat and what is it used for
• 2. Important information before taking Seroxat
• 3. How to take Seroxat
• 4. Possible side effects
• 5. How to store Seroxat
• 6. Contents of the packaging and other information

1. What is Seroxat and what is it used for

Seroxat is used to treat depression and anxiety disorders in adults.

Anxiety disorders for which Seroxat is used include: obsessive-compulsive disorder (recurring, obsessive thoughts with uncontrolled behavior), panic disorder (panic attacks, including those caused by agoraphobia, which is a fear of open spaces), social phobia (fear or avoidance of social situations), post-traumatic stress disorder (anxiety caused by a traumatic event), and generalized anxiety disorder (generalized feeling of anxiety or nervousness).
Seroxat belongs to a group of medicines called selective serotonin reuptake inhibitors (SSRIs). It is not fully understood how Seroxat and other SSRIs work, but they may increase the level of serotonin in the brain. Proper treatment of depression and anxiety disorders is important for the patient to feel better.

2. Important information before taking Seroxat

When not to take Seroxat:

• If the patient is taking monoamine oxidase inhibitors (MAOIs, including moclobemide and methylene blue)or has taken them in the last two weeks. The doctor will advise the patient on how to start taking Seroxat after stopping MAOIs.
• If the patient is taking antipsychotic medicines, such as thioridazine or pimozide.
• If the patient is allergicto paroxetine or any of the other ingredients of this medicine (listed in section 6). If any of the above situations apply to the patient, they should contact their doctor without taking Seroxat.

Warnings and precautions

Before starting Seroxat, the patient should discuss the following with their doctor or pharmacist:

• Is the patient taking any other medicines (see Seroxat and other medicineslater in the leaflet)?
• Is the patient taking tamoxifen for breast cancer? Seroxat may reduce the effectiveness of tamoxifen, and the doctor may recommend a different antidepressant.
• Does the patient have kidney, liver, or heart problems?
• Does the patient have abnormal heart rhythm (ECG) known as QT prolongation?
• Is there a family history of QT prolongation, heart disease such as heart failure, low heart rate, or low potassium or magnesium levels?
• Does the patient have epilepsy or a history of seizures?
• Has the patient ever had episodes of mania (excessive activity or racing thoughts)?
• Is the patient receiving electroconvulsive therapy?
• Has the patient ever had bleeding or is the patient taking other medicines that may increase the risk of bleeding (including anticoagulants such as warfarin, antipsychotics such as perphenazine or clozapine, tricyclic antidepressants, or non-steroidal anti-inflammatory drugs (NSAIDs) such as aspirin, ibuprofen, celecoxib, etodolac, diclofenac, or meloxicam)?
• Does the patient have diabetes?
• Is the patient on a low-sodium diet?
• Does the patient have glaucoma (increased pressure in the eye)?
• Is the patient pregnant or planning to become pregnant (see Pregnancy, breastfeeding, and fertilitylater in the leaflet)?
• Is the patient under 18 years old (see Children and adolescents under 18 years oldlater in the leaflet)?

If the answer is YES to any of the above questionsand the patient has not yet consulted their doctor, they should consult their doctor againand ask how to take Seroxat.

Children and adolescents under 18 years old

Seroxat should not be used in children and adolescents under 18 years old.Patients under 18 years old are at increased risk of side effects such as suicidal attempts, suicidal thoughts, and hostility (especially aggression, rebellious behavior, and manifestations of anger) when taking Seroxat. If the doctor has prescribed Seroxat to a patient under 18 years old and there are concerns, the patient should consult their doctor. If these symptoms occur or worsen while taking Seroxat, the patient should inform their doctor. Additionally, there is currently no data on the long-term safety of Seroxat regarding growth, maturation, and cognitive and behavioral development in this age group.
In studies of Seroxat in patients under 18 years old, common side effects that occurred with a frequency of less than 1 in 10 patients included increased suicidal thoughts and attempts, intentional self-injury, hostility, aggressive behavior, or unfriendly behavior, loss of appetite, tremors, abnormal sweating, excessive activity (excess energy), restlessness, emotional instability (including tearfulness and mood changes), and unusual bruising or bleeding (such as nosebleeds).
These studies also showed that such symptoms occurred, although less frequently, in children and adolescents taking placebo tablets instead of Seroxat.
Some patients under 18 years old in these studies experienced withdrawal symptoms when stopping Seroxat. These symptoms were very similar to those observed in adults after stopping Seroxat (see section 3). Additionally, in patients under 18 years old, abdominal pain, irritability, and emotional instability (including tearfulness, mood changes, self-injury, suicidal thoughts, and attempts) also occurred frequently (with a frequency of less than 1 in 10 patients).

Suicidal thoughts and worsening of depression or anxiety disorder

In patients with depression and/or anxiety disorders, suicidal thoughts or self-harm thoughts may sometimes occur. They may be more severe at the beginning of antidepressant treatment, as it may take some time, usually around two weeks, for the medicines to start working, and sometimes even longer.

The patient is more likely to have such thoughts if:

• The patient has had suicidal thoughts or self-harm thoughts before.
• The patient is a young adult. Clinical studies have shown an increased risk of suicidal behavior in adults under 25 years old with mental disorders who were treated with antidepressants. If the patient ever has thoughts of self-harm or suicide, they should contact their doctor or the nearest emergency department immediately.

It may be helpful for the patient to inform a relative or friendabout their depression or anxiety disorder and ask them to read this leaflet. The patient may ask them to tell them if they notice that their depression or anxiety disorder is getting worse or if they notice any worrying changes in their behavior.

Important side effects observed during Seroxat treatment

In some patients taking Seroxat, a condition called akathisia may develop. They will feel anxious and unable to sit or stand still. In other patients, a condition called serotonin syndrome or neuroleptic malignant syndrome may occur, characterized by some or all of the following symptoms: feeling extremely agitated or confused, feeling anxious, hot, sweating, shaking, shivering, hallucinations (seeing or hearing unusual things), muscle stiffness, sudden muscle contractions, or rapid heartbeat. These symptoms may worsen, leading to loss of consciousness. If the patient notices any of these symptoms, they should contact their doctor.
Medicines like Seroxat (SSRIs) may cause sexual function disorders (see section 4). In some cases, these symptoms have persisted after treatment was stopped.

Seroxat and other medicines

Some medicines may affect the action of Seroxat or increase the risk of side effects. Seroxat may also affect the action of other medicines. These medicines include:

• Monoamine oxidase inhibitors (MAOIs, including moclobemide and methylene blue)- see section When not to take Seroxat
• Medicines known to increase the risk of changes in heart electrical activity (e.g., antipsychotic medicines such as thioridazine or pimozide) - see section When not to take Seroxat
• Aspirin, ibuprofen, or other non-steroidal anti-inflammatory drugs (NSAIDs) such as celecoxib, etodolac, diclofenac, and meloxicam, used to treat pain and inflammation
• Tramadol, buprenorphine, and pethidine, painkillers
• Buprenorphine in combination with naloxone, used for opioid dependence substitution treatment
• Triptans, such as sumatriptan, used to treat migraines
• Other antidepressant medicines, called SSRIs and tricyclic antidepressants, such as clomipramine, nortriptyline, and desipramine
• Dietary supplementcalled tryptophan
• Mivacurium and suxamethonium (used for general anesthesia)
• Medicines such as lithium, risperidone, perphenazine, and clozapine (called antipsychotic medicines) used to treat certain mental disorders
• Fentanyl, a medicine used during anesthesiaand to treat chronic pain
• The combination of fosamprenavir and ritonavir, used to treat HIV infections
• St. John's Wort, used as a depression aid
• Phenobarbital, phenytoin, sodium valproate, or carbamazepine, used to treat seizures or epilepsy
• Atomoxetine, used to treat attention deficit hyperactivity disorder (ADHD)
• Procyclidine, used to treat parkinsonian tremor
• Warfarin or other medicines (called anticoagulants) used to thin the blood
• Propafenone, flecainide, and medicines used to treat irregular heartbeat
• Metoprolol, a beta-blocker used to treat high blood pressure and heart problems
• Pravastatin, used to treat high cholesterol
• Rifampicin, used to treat tuberculosis
• Linezolid - an antibiotic
• Tamoxifen, used to treat breast cancer.

If the patient is currently taking or has recently taken any of these medicines, and has not yet discussed this with their doctor, they should contact their doctor againand ask how to proceed. The dose of the medicine may need to be changed or a different medicine may be necessary.

The patient should tell their doctor or pharmacist about all medicines they are currently taking or plan to take

, including those obtained without a prescription. The patient should also tell their doctor or pharmacist if they are taking any other medicines, including those obtained without a prescription.

Seroxat with food, drink, and alcohol

The patient should not drink alcohol while taking Seroxat. Alcohol may increase the symptoms of the disease or side effects. Taking Seroxat in the morning, with food, reduces the likelihood of nausea.

Pregnancy, breastfeeding, and fertility

If the patient is pregnant or breastfeeding, or thinks they may be pregnant or plans to have a baby, they should consult their doctor or pharmacist before taking this medicine.
There are reports that children whose mothers took Seroxat during the first few months of pregnancy had congenital malformations, particularly heart defects. In the general population, about 1 in 100 children is born with a heart defect. This number increases to 2 in 100 children if the mother takes Seroxat. The doctor will discuss with the patient whether it is better for them to switch to a different medicine during pregnancy or to gradually stop taking Seroxat.
In certain circumstances, the doctor may also suggest that it is better for the patient to continue taking Seroxat.

The patient should ensure that their midwife or doctor is informed that they are taking Seroxat

. Taking Seroxat at the end of pregnancy may increase the risk of serious bleeding from the vagina, occurring shortly after delivery, especially if the patient has a history of bleeding disorders. If the patient is taking Seroxat, they should inform their doctor or midwife so that they can provide appropriate advice. Medicines like Seroxat, when taken during pregnancy, especially in the last few months, may increase the risk of a condition called persistent pulmonary hypertension in the newborn (PPHN).
In PPHN, the blood pressure in the blood vessels between the heart and lungs is too high. If the patient takes Seroxat during the last 3 months of pregnancy, the newborn may also experience other symptoms, usually within the first 24 hours after birth, including:

• Difficulty breathing
• Bluish discoloration of the skin or unstable body temperature
• Bluish discoloration of the lips
• Vomiting or difficulty feeding
• Tiredness, difficulty sleeping, or increased crying
• Stiff or floppy muscles
• Tremors, jitteriness, or seizures
• Increased reflexes. If the baby experiences any of these symptoms after birth or if there are concerns about the baby's health, the patient should contact their doctor or midwife for advice.

Seroxat may pass into breast milk in very small amounts. If the patient is taking Seroxat, they should consult their doctor before breastfeeding. The doctor and patient can decide together whether to breastfeed while taking Seroxat.
Animal studies have shown that paroxetine reduces sperm quality. This could theoretically affect fertility, but the impact on human fertility has not been determined yet.

Driving and using machines

Possible side effects of Seroxat, such as dizziness, disorientation, drowsiness, and vision disturbances, may impair the patient's ability to drive or operate machinery. If the patient experiences such side effects, they should not drive or operate machinery.

Seroxat contains sodium

This medicine contains less than 1 mmol (23 mg) of sodium per tablet, which means it is essentially "sodium-free".

3. How to take Seroxat

This medicine should always be taken as directed by the doctor. If the patient has any doubts, they should consult their doctor or pharmacist.
Sometimes, taking one tablet does not ensure the patient is taking the full recommended dose of Seroxat. The following table shows how many tablets of Seroxat the patient should take for each dose.

Dose Number of tablets to take

10 mg
half a tablet
20 mg
one tablet
30 mg
one and a half tablets
40 mg
two tablets
50 mg
two and a half tablets
60 mg
three tablets
Usual doses for different conditions are given below.

The doctor will advise the patient on the initial dose of Seroxat. Most patients start to feel better after a few weeks. If there is no improvement after this time, the patient should consult their doctor. The doctor may decide to gradually increase the dose by 10 mg until the maximum daily dose is reached.
The tablets should be taken in the morning, with food.

Swallow the tablets with water

Do not chew

The doctor will discuss with the patient how long they should take the tablets. Treatment may last for several months or even longer.

Elderly patients

The maximum dose for patients over 65 years old is 40 mg per day.

Patients with liver or kidney disease

In patients with liver disease or severe kidney disease, the doctor may recommend a lower dose of Seroxat than usual.

Taking more Seroxat than prescribed

The patient should never take more tablets than prescribed by their doctor. If the patient (or someone else) has taken too many Seroxat tablets, they should immediately inform their doctor or contact the nearest emergency department. They should show them the packaging of the tablets.
As a result of overdosing on Seroxat, the patient may experience side effects described in section 4: Possible side effectsor the following symptoms: fever, involuntary muscle contractions.

Missing a dose of Seroxat

The patient should take the medicine at the same time every day.
If the patient misses a dose and remembers before going to bed, they should take it immediately. The next day, they should take the dose as usual.
If the patient remembers in the night or the next day that they missed a dose, they should not take the missed dose. The patient may experience withdrawal symptoms, but they should resolve quickly after taking the next dose at the usual time.
The patient should not take a double dose to make up for the missed dose.

What to do if there is no improvement

Seroxat does not relieve symptoms immediately -all antidepressant medicines take some time to start working. Some patients start to feel better after a few weeks, and others later. Some patients taking antidepressants feel worse before they start to feel better. If the patient does not feel better after a few weeks of treatment, they should consult their doctor for advice. The doctor should recommend that the patient have a follow-up visit a few weeks after starting Seroxat for the first time. The patient should inform their doctor if they have not started to feel better.

Stopping Seroxat treatment

The patient should not stop taking Seroxat without consulting their doctor

When stopping Seroxat, the doctor will help the patient gradually reduce the dose over a few weeks or months - this should minimize the risk of withdrawal symptoms. One way to do this is to gradually reduce the dose of Seroxat by 10 mg per week. In most patients, withdrawal symptoms are mild and resolve within two weeks. In some patients, symptoms may be more severe or may last longer.
If the patient experiences withdrawal symptomsafter stopping Seroxat, the doctor may decide that the patient should stop taking the medicine more slowly. If the patient experiences severe symptoms while stopping Seroxat, they should contact their doctor. The doctor may recommend restarting the tablets and stopping them more slowly.

Even if the patient experiences withdrawal symptoms, it is still possible to stop taking Seroxat

Possible withdrawal symptoms after stopping treatment

Studies have shown that 3 out of 10 patients notice one or more withdrawal symptoms when stopping Seroxat treatment. Some of these symptoms occur more frequently than others.
Common side effects(occurring in up to 1 in 10 patients): dizziness, unsteadiness, or difficulty balancing; feeling of tingling, burning, or (less commonly) electric shock sensations, including in the head, and buzzing, ringing, or other persistent noises in the ears (tinnitus); sleep disturbances (vivid dreams, nightmares, insomnia); feeling anxious; headaches.

If the patient is concerned about withdrawal symptoms after stopping Seroxat

they should contact their doctor

In case of further doubts about taking this medicine, the patient should consult their doctor or pharmacist.

4. Possible side effects

Like all medicines, Seroxat can cause side effects, although not everybody gets them.
Side effects are more common during the first few weeks of taking Seroxat.

The patient should contact their doctor if they experience any of the following side effects during treatment

It may be necessary to contact the doctor or the nearest emergency department immediately.
Uncommon side effects(occurring in up to 1 in 100 patients): if the patient experiences unusual bruising or bleeding, including vomiting blood or blood in their stools, they should contact their doctor or go to the hospital immediately.
Rare side effects(occurring in up to 1 in 1,000 patients): if the patient has a seizure (convulsions), they should contact their doctor or go to the hospital immediately.
Very rare side effects(occurring in up to 1 in 10,000 patients): if the patient experiences an allergic reaction to Seroxat, which may be severe. If the patient has a red, lumpy rash, swelling of the eyelids, face, lips, mouth, or tongue, itching, difficulty breathing (dyspnea) or swallowing, feeling weak or fainting, they should contact their doctor or go to the hospital immediately.
if the patient has some or all of the following symptoms, they may have serotonin syndrome or neuroleptic malignant syndrome: feeling extremely agitated or confused, feeling anxious, hot, sweating, shaking, shivering, hallucinations (seeing or hearing unusual things), muscle stiffness, sudden muscle contractions, or rapid heartbeat. These symptoms may worsen, leading to loss of consciousness. If the patient experiences such symptoms, they should contact their doctor.
Acute glaucoma. If the patient experiences eye pain and changes in vision, they should contact their doctor.

Side effects with unknown frequency

In some patients taking Seroxat or shortly after stopping treatment, suicidal thoughts or self-harm thoughts have occurred (see Suicidal thoughts and worsening of depression or anxiety disorderin section 2).
In some patients taking Seroxat, aggression has occurred.

If the patient experiences any of these side effects

they should contact their doctor

Other possible side effects that may occur during treatment

• Very common side effects(occurring in more than 1 in 10 patients): nausea. Taking Seroxat in the morning, with food, reduces the likelihood of nausea.
• Change in sexual desire or sexual function. For example, lack of orgasm, or in men, erectile dysfunction and ejaculatory disturbance.

Common side effects(occurring in up to 1 in 10 patients): increased cholesterol levels in the blood; loss of appetite; sleep disturbances (insomnia) or drowsiness; unusual dreams (nightmares); dizziness or tremors; headaches; difficulty concentrating; feeling restless; feeling extremely weak; vision disturbances; yawning, dry mouth; diarrhea or constipation; vomiting; weight gain; sweating.

Uncommon side effects(occurring in up to 1 in 100 patients): short-term increases or decreases in blood pressure, which may cause dizziness or fainting when changing position quickly; faster than normal heartbeat; difficulty moving, stiffness, tremors, or abnormal movements of the mouth and tongue; dilated pupils; rashes; itching; feeling disoriented; hallucinations (seeing or hearing unusual things); inability to urinate (urinary retention) or involuntary, uncontrollable urination (urinary incontinence).
In patients with diabetes, Seroxat may affect blood sugar control. The patient should discuss this with their doctor, who may need to adjust the dose of insulin or diabetes medicines.

Rare side effects(occurring in up to 1 in 1,000 patients): abnormal production of milk in the breasts in men and women; slow heartbeat; effects on the liver shown in blood tests of liver function; panic attacks; excessive activity or manic episodes (mania); feeling uncertain about their own identity (depersonalization); feeling anxious; irresistible urge to move the legs (restless legs syndrome); joint or muscle pain; increased levels of a hormone called prolactin in the blood; menstrual disorders (including heavy or irregular bleeding, intermenstrual bleeding, and absence or delay of menstruation).

Very rare side effects(occurring in up to 1 in 10,000 patients): a skin rash called erythema multiforme, which may look like targets or bullseyes (a dark spot in the center, surrounded by a lighter ring and a darker ring on the outside); widespread skin rash with blisters and peeling, especially around the mouth, nose, eyes, and genitals (Stevens-Johnson syndrome); widespread skin rash with blisters and peeling of large areas of skin (toxic epidermal necrolysis); liver disorders that cause yellowing of the skin or whites of the eyes; syndrome of inappropriate antidiuretic hormone secretion (SIADH), where the body retains too much water and the sodium levels are low. Patients with SIADH may have symptoms of severe illness or may not have any symptoms; fluid retention or water retention (which may cause swelling of the hands or feet); sensitivity to light; painful, persistent erection of the penis; decreased platelet count.

Side effects with unknown frequency(frequency cannot be estimated from the available data): inflammation of the colon (causing diarrhea); grinding of the teeth.

Some patients taking Seroxat may experience ringing, buzzing, or other persistent noises in the ears (tinnitus) during treatment.
Patients taking medicines like Seroxat have been shown to have an increased risk of bone fractures.

Reporting side effects

If the patient experiences any side effects, including those not listed in this leaflet, they should tell their doctor or pharmacist. Side effects can be reported directly to the Department of Drug Safety, Urząd Rejestracji Produktów Leczniczych, Wyrobów Medycznych i Produktów Biobójczych, al. Jerozolimskie 181C, 02-222 Warszawa, tel.: +48 22 49 21 301, fax: +48 22 49 21 309, website: https://smz.ezdrowie.gov.pl
Side effects can also be reported to the marketing authorization holder.
Reporting side effects will help to gather more information on the safety of this medicine.

5. How to store Seroxat

The medicine should be stored out of sight and reach of children.
Do not use this medicine after the expiry date (EXP) stated on the packaging. The expiry date refers to the last day of the month.
Do not store above 30°C.
Store in the original packaging to protect from light.
If the patient is taking half-tablets, they should store them in the medicine packaging.
Medicines should not be disposed of via wastewater or household waste. The patient should ask their pharmacist how to dispose of medicines they no longer need. This will help protect the environment.

6. Contents of the packaging and other information

What Seroxat contains

The active substance of Seroxat is paroxetine (20 mg) in the form of paroxetine hydrochloride hemihydrate.
Other ingredients of the medicine are:
Tablet core: calcium hydrogen phosphate dihydrate, magnesium stearate, sodium starch glycolate (type A).
Coating: Opadry White YS-1R-7003: hypromellose, titanium dioxide (E171), macrogol 400, polysorbate 80.

What Seroxat looks like and contents of the pack

Seroxat 20 mg, coated tablets - white, oval, biconvex, coated tablets with "SEROXAT 20" or "20" engraved on one side and a score line on the other side.
Each pack of Seroxat 20 mg, coated tablets contains 30 tablets in child-resistant blisters.
Not all pack sizes may be marketed.

Marketing authorization holder and manufacturer

Marketing authorization holder:

GlaxoSmithKline Trading Services Limited
12 Riverwalk
Citywest Business Campus
Dublin 24
D24 YK11
Ireland

Manufacturer:

Delpharm Poznań Spółka Akcyjna
ul. Grunwaldzka 189
60-322 Poznań
Polska

This medicine is authorized in the Member States of the European Economic Area under the following names:

For the patient, it may be helpful to contact a support group or patient organization, where they can learn more about their condition. The doctor can provide more detailed information.
To obtain more detailed information, the patient should contact the representative of the marketing authorization holder:
GSK Services Sp. z o.o.
ul. Rzymowskiego 53
02-697 Warszawa
Tel: +48 22 576 9000
Date of last revision of the leaflet:January 2025