Patient Leaflet Updated 02-Jul-2026 | Morningside Healthcare Ltd
Paroxetine 10 mg & 40 mg Tablets
Paroxetine
10mg, 20mg, 30mg & 40mg Tablets
1. What Paroxetine is and what it is used for
2. What you need to know before you take Paroxetine
3. How to take Paroxetine
4. Possible side effects
5. How to store Paroxetine
6. Contents of the pack and other information
Paroxetine is a treatment for adults with depression and/or anxiety disorders.
The anxiety disorders that Paroxetine is used to treat are: obsessive compulsive disorder (repetitive, obsessive thoughts with uncontrollable behaviour); panic disorder (panic attacks, including those caused by agoraphobia, which is a fear of open spaces); social anxiety disorder (fear or avoidance of social situations); post-traumatic stress disorder (anxiety caused by a traumatic event); and generalised anxiety disorder (generally feeling very anxious or nervous).
Paroxetine is one of a group of medicines called SSRIs (selective serotonin reuptake inhibitors). It is not fully understood how Paroxetine and other SSRIs work but they may help by increasing the level of serotonin in the brain. Treating depression or anxiety disorders properly is important to help you get better.
Do not take Paroxetine if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Paroxetine.
Talk to your doctor or pharmacist before taking Paroxetine:
Medicines like Paroxetine Tablets (so called SSRIs) may cause symptoms of sexual dysfunction (see section 4). In some cases, these symptoms have continued after stopping treatment.
Paroxetine should not be used for children and adolescents under 18 years. Also, patients under 18 have an increased risk of side effects such as suicide attempt, suicidal thoughts and hostility (predominantly aggression, oppositional behaviour and anger) when they take Paroxetine. If your doctor has prescribed Paroxetine for you (or your child) and you want to discuss this, please go back to your doctor. You should inform your doctor if any of the symptoms listed above develop or worsen when you (or your child) are taking Paroxetine. Also, the long-term safety effects, concerning growth, maturation and cognitive and behavioural development, of Paroxetine in this age group have not yet been demonstrated.
In studies of Paroxetine in under 18s, common side effects that affected less than 1 in 10 children/adolescents were: an increase in suicidal thoughts and suicide attempts; deliberately harming themselves; being hostile; aggressive or unfriendly; lack of appetite; shaking; abnormal sweating; hyperactivity (having too much energy); agitation; changing emotions (including crying and changes in mood); and unusual bruising or bleeding (such as nose bleeds). These studies also showed that the same symptoms affected children and adolescents taking sugar pills (placebo) instead of Paroxetine, although these were seen less often.
Some patients in these studies of under 18s had withdrawal effects when they stopped taking Paroxetine. These effects were mostly similar to those seen in adults after stopping Paroxetine (see section 3, How to take Paroxetine, inside this leaflet). In addition, patients under 18 also commonly (affecting less than 1 in 10) experienced stomach ache, feeling nervous and changing emotions (including crying, changes in mood, trying to hurt themselves, thoughts of suicide and attempting suicide).
If you are depressed and/or have anxiety disorders you can sometimes have thoughts of harming or killing yourself. These may be increased when first starting antidepressants, since these medicines all take time to work, usually about two weeks but sometimes longer.
You may be more likely to think like this:
If you have thoughts of harming or killing yourself at any time, contact your doctor or go to a hospital straight away.
You may find it helpful to tell a relative or close friend that you are depressed or have an anxiety disorder, and ask them to read this leaflet. You might ask them to tell you if they think your depression or anxiety is getting worse, or if they are worried about changes in your behaviour.
Some patients who take Paroxetine develop something called akathisia, where they feel restless and feel like they can’t sit or stand still. Other patients develop something called serotonin syndrome, or neuroleptic malignant syndrome, where they have some or all of the following symptoms: feeling very agitated or irritable, feeling confused, feeling restless, feeling hot, sweating, shaking, shivering, hallucinations (strange visions or sounds), muscle stiffness, sudden jerks of the muscles or a fast heartbeat. The severity can increase, leading to loss of consciousness. If you notice any of these symptoms, contact your doctor.
For more information on these or other side effects of Paroxetine, see section 4, Possible side effects, inside this leaflet.
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines, including medicines obtained without a prescription. The dose may need to be changed or you may need to be given another medicine.
Some medicines can affect the way Paroxetine works or make it more likely that you’ll have side effects. Paroxetine can also affect the way some other medicines work. These include:
Do not drink alcohol while you are taking Paroxetine. Alcohol may make your symptoms or side effects worse. Taking Paroxetine in the morning with food will reduce the likelihood of you feeling sick (nausea).
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. In babies whose mothers took Paroxetine during the first few months of pregnancy, there have been some reports showing an increased risk of birth defects, in particular those affecting the heart.
In the general population, about 1 in 100 babies are born with a heart defect. This increased to up to 2 in 100 babies in mothers who took Paroxetine. You and your doctor may decide that it is better for you to change to another treatment or to gradually stop taking Paroxetine while you are pregnant. However, depending on your circumstances, your doctor may suggest that it is better for you to keep taking Paroxetine.
Make sure your midwife or doctor knows you’re taking Paroxetine. If you take Paroxetine near the end of your pregnancy there may be an increased risk of heavy vaginal bleeding shortly after birth, especially if you have a history of bleeding disorders.
Your doctor or midwife should be aware that you are taking Paroxetine so they can advise you. When taken during pregnancy, particularly late pregnancy, medicines like Paroxetine may increase the risk of a serious condition in babies, called persistent pulmonary hypertension of the newborn (PPHN). In PPHN, the blood pressure in the blood vessels between the baby’s heart and the lungs is too high. If you take Paroxetine during the last 3 months of pregnancy, your newborn baby might also have other conditions, which usually begin during the first 24 hours after birth. Symptoms include:
If your baby has any of these symptoms when it is born, or you are concerned about your baby’s health, contact your doctor or midwife who will be able to advise you.
Paroxetine may get into breast milk in very small amounts. If you are taking Paroxetine, go back and talk to your doctor before you start breast-feeding. You and your doctor may decide that you can breast-feed while you are taking Paroxetine.
Paroxetine has been shown to reduce the quality of sperm in animal studies. Theoretically, this could affect fertility, but impact on human fertility has not been observed as yet.
Possible side effects of Paroxetine include dizziness, confusion, feeling sleepy or blurred vision. If you do get these side effects, do not drive or use machinery.
This medicine contains less than 1 mmol sodium (23mg) per tablet, that is to say essentially ‘sodium-free’.
Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.
10mg: biconvex off-white round tablet inscribed 10 on one side
20mg: flat faced bevel edged off white round tablet inscribed 20 on one side with a score line for division into equal halves
30mg: flat faced bevel edged off white round tablet with a score line
40mg: capsule shaped off white tablet with a score line for division into equal halves
Sometimes you may need to take more than one tablet or half a tablet. This table will show you how many tablets to take.
Dose and Number of tablets to take
10 mg
One tablet of 10 mg
20 mg
One tablet of 20 mg
30 mg
One tablet of 30 mg
40 mg
One tablet of 40 mg
50 mg
One tablet of 40 mg and One tablet of 10 mg
or One tablet of 30 mg and One tablet of 20 mg
60 mg
Two tablets of 30 mg or
One tablet of 40 mg and one tablet of 20 mg or
Three tablets of 20 mg
The usual doses for different conditions are set out in the table below.
Depression
Starting dose 20 mg
Recommended daily dose 20 mg
Maximum daily dose 50 mg
Obsessive Compulsive Disorder (obsessions and compulsions)
Starting dose 20 mg
Recommended daily dose 40 mg
Maximum daily dose 60 mg
Panic Disorder (panic attacks)
Starting dose 10 mg
Recommended daily dose 40 mg
Maximum daily dose 60 mg
Social Anxiety Disorder (fear or avoidance of social situations)
Starting dose 20 mg
Recommended daily dose 20 mg
Maximum daily dose 50 mg
Post-Traumatic Stress Disorder
Starting dose 20 mg
Recommended daily dose 20 mg
Maximum daily dose 50 mg
Generalised Anxiety Disorder
Starting dose 20 mg
Recommended daily dose 20 mg
Maximum daily dose 50 mg
Your doctor will advise you what dose to take when you first start taking Paroxetine.
Most people start to feel better after a couple of weeks. If you don’t start to feel better after this time, talk to your doctor, who will advise you. He or she may decide to increase the dose gradually, 10mg at a time, up to a maximum daily dose.
Take your tablets in the morning with food. The tablets should be immediately swallowed whole with plenty of water (at least 1 glass of 150ml). Do not suck, chew or keep the tablets in the mouth because this can cause a local unpleasant sensation like bitter taste, burning in the throat, irritating cough or choking sensation.
Your doctor will talk to you about how long you will need to keep taking your tablets. This may be for many months or even longer.
The maximum dose for people over 65 is 40mg per day.
If you have trouble with your liver or kidneys your doctor may decide that you should have a lower dose of Paroxetine than usual. If you have severe liver or kidney disease the maximum dose is 20mg per day.
Never take more tablets than your doctor recommends. If you take too many Paroxetine tablets (or someone else does), tell your doctor or a hospital straight away. Show them the pack of tablets. Someone who has taken an overdose of Paroxetine may have any one of the symptoms listed in section 4, Possible side effects, or the following symptoms: fever; uncontrollable tightening of the muscles.
Take your medicine at the same time every day. If you do forget a dose, and you remember before you go to bed, take it straight away. Carry on as usual the next day.
If you only remember during the night, or the next day leave out the missed dose. You may possibly get withdrawal effects, but these should go away after you take your next dose at the usual time.
Do not take a double dose to make up for a forgotten dose.
Paroxetine will not relieve your symptoms straight away - all antidepressants take time to work. Some people will start to feel better within a couple of weeks, but for others it may take a little longer. Some people taking antidepressants feel worse before feeling better. If you don’t start to feel better after a couple of weeks, go back to your doctor who will advise you. Your doctor should ask to see you again a couple of weeks after you first start treatment. Tell your doctor if you haven’t started to feel better.
Do not stop taking Paroxetine until your doctor tells you to.
When stopping Paroxetine, your doctor will help you to reduce your dose slowly over a number of weeks or months - this should help reduce the chance of withdrawal effects. One way of doing this is to gradually reduce the dose of Paroxetine you take by 10mg a week. Most people find that any symptoms on stopping Paroxetine are mild and go away on their own within two weeks. For some people, these symptoms may be more severe, or go on for longer.
If you get withdrawal effects when you are coming off your tablets your doctor may decide that you should come off them more slowly. If you get severe withdrawal effects when you stop taking Paroxetine, please see your doctor. He or she may ask you to start taking your tablets again and come off them more slowly. It may be easier for you to take Paroxetine oral suspension during the time that you are coming off your medicine.
If you do get withdrawal effects, you will still be able to stop Paroxetine.
Studies show that 3 in 10 patients notice one or more symptoms on stopping Paroxetine. Some withdrawal effects on stopping occur more frequently than others.
Common withdrawal effects, may affect up to 1 in 10 people:
Uncommon withdrawal effects, may affect up to 1 in every 100 people:
Please see your doctor if you are worried about withdrawal effects when stopping Paroxetine.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them. Side effects are more likely to happen in the first few weeks of taking Paroxetine.
You may need to contact your doctor or go to a hospital straight away.
Uncommon (may affect up to 1 in 100 people):
Rare (may affect up to 1 in 1,000 people):
Very rare (may affect up to 1 in 10,000 people):
Frequency not known
If you experience these side effects, contact your doctor.
Very common (may affect more than 1 in 10 people):
Common (may affect up to 1 in 10 people):
Uncommon (may affect up to 1 in 100 people):
Rare (may affect up to 1 in 1,000 people):
Very rare (may affect up to 1 in 10,000 people):
Frequency not known
An increased risk of bone fractures has been observed in patients taking this type of medicine.
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: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the carton and blister after ‘EXP’. The expiry date refers to the last day of that month.
This medicinal product does not require any special storage conditions.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.
The active substance is Paroxetine (as hydrochloride anhydrous).
The other ingredients are microcrystalline cellulose (E460), calcium hydrogen phosphate dihydrate (E341), croscarmellose sodium (E468), colloidal anhydrous silica (E551) and magnesium stearate (E470b).
Tablet
10mg: biconvex off-white round tablet inscribed 10 on one side.
20mg: flat faced bevel edged off white round tablet inscribed 20 on one side with a score line for division into equal halves.
30mg: flat faced bevel edged off white round tablet with a score line.
40mg: capsule shaped off white tablet with a score line for division into equal halves.
Boxes containing 10, 14, 20, 28, 30, 56 and 60 tablets in blisters are available.
Not all pack sizes may be marketed.
This leaflet was last revised in October 2024.
MPL15761 - P1.1
Morningside House, Unit C Harcourt Way, Meridian Business Park, Leicester, LE19 1WP
+44 (0)116 204 5950
+44 (0)1509 217 705
http://www.morningsidehealthcare.com
+44 (0)116 478 0322
+44 (0)116 204 5950