Patient Leaflet Updated 16-Oct-2026 | Aurobindo Pharma - Milpharm Ltd.
Duloxetine 20 mg, 40 mg gastro-resistant capsules, hard
Duloxetine 20 mg gastro-resistant capsules, hard
Duloxetine 40 mg gastro-resistant capsules, hard
Duloxetine (as hydrochloride)
1. What Duloxetine is and what it is used for
2. What you need to know before you take Duloxetine
3. How to take Duloxetine
4. Possible side effects
5. How to store Duloxetine
6. Contents of the pack and other information
Duloxetine contains the active substance duloxetine. Duloxetine increases the levels of serotonin and noradrenaline in the nervous system.
Duloxetine is a medicine to be taken by mouth to treat Stress Urinary Incontinence (SUI) in women.
Stress urinary incontinence is a medical condition in which patients have accidental loss or leakage of urine during physical exertion or activities such as laughing, coughing, sneezing, lifting, or exercise.
Duloxetine is believed to work by increasing the strength of the muscle that holds back urine when you laugh, sneeze, or perform physical activities.
The efficacy of Duloxetine is reinforced when combined with a training program called Pelvic Floor Muscle Training (PFMT).
Talk to your doctor if you have high blood pressure or heart disease. Your doctor will tell you if you should be taking Duloxetine.
The following are reasons why Duloxetine may not be suitable for you. Talk to your doctor before you take Duloxetine if you:
Medicines like Duloxetine (so called SSRIs/SNRIs) may cause symptoms of sexual dysfunction (see section 4). In some cases, these symptoms have continued after stopping treatment.
Duloxetine may cause a sensation of restlessness or an inability to sit or stand still. You should tell your doctor if this happens to you.
You should also contact your doctor:
If you experience signs and symptoms of restlessness, hallucinations, loss of coordination, fast heart beat, increased body temperature, fast changes in blood pressure, overactive reflexes, diarrhoea, coma, nausea, vomiting, as you might be suffering a serotonin syndrome.
In its most severe form, serotonin syndrome can resemble Neuroleptic Malignant Syndrome (NMS). Signs and symptoms of NMS may include a combination of fever, fast heart beat, sweating, severe muscle stiffness, confusion, increased muscle enzymes (determined by a blood test).
Although Duloxetine is not indicated for the treatment of depression, its active ingredient (duloxetine) is used as an antidepressant medicine.
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:
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.
Duloxetine should not be used for children and adolescents under 18 years. Also, you should know that 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 this class of medicines. Also, the long-term safety effects concerning growth, maturation, and cognitive and behavioural development of Duloxetine in this age group have not yet been demonstrated.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines, including medicines obtained without a prescription.
Some medicines may increase the side effects of Duloxetine and may sometimes cause very serious reactions. Do not take any other medicines whilst taking Duloxetine without first talking to your doctor, especially:
The main ingredient of Duloxetine, duloxetine, is used in other medicines for other conditions:
Using more than one of these medicines at the same time should be avoided. Check with your doctor if you are already taking other medicines containing duloxetine.
Your doctor should decide whether you can take Duloxetine with other medicines. Do not start or stop taking any medicines, including those bought without a prescription and herbal remedies, before checking with your doctor.
You should also tell your doctor if you are taking any of the following:
Monoamine oxidase inhibitors (MAOIs):You should not take Duloxetine if you are taking or have recently taken (within the last 14 days) an antidepressant medicine called a monoamine oxidase inhibitor (MAOI). Examples of MAOIs include moclobemide (an antidepressant) and linezolid (an antibiotic). Taking a MAOI together with many prescription medicines, including Duloxetine, can cause serious or even life-threatening side effects. You must wait at least 14 days after you have stopped taking an MAOI before you can take Duloxetine. Also, you need to wait at least 5 days after you stop taking Duloxetine before you take a MAOI.
Medicines that cause sleepiness: These include medicines prescribed by your doctor including benzodiazepines, strong painkillers, antipsychotics, phenobarbital and sedative antihistamines.
Medicines that increase the level of serotonin: Triptans, tramadol, tryptophan, SSRIs (such as paroxetine and fluoxetine), SNRIs (such as venlafaxine), tricyclic antidepressants (such as clomipramine, amitriptyline), pethidine, St John’s Wort and MAOIs (such as moclobemide and linezolid). These medicines increase the risk of side effects; if you get any unusual symptom taking any of these medicines together with Duloxetine, you should see your doctor.
Oral anticoagulants or antiplatelet agents: Medicines which thin the blood or prevent the blood from clotting. These medicines might increase the risk of bleeding.
Duloxetine may be taken with or without food. You should take extra care if you drink alcohol while taking Duloxetine.
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.
Make sure your midwife and/or doctor knows you are on Duloxetine. When taken during pregnancy, similar drugs (SSRIs) may increase the risk of a serious condition in babies, called persistent pulmonary hypertension of the newborn (PPHN), making the baby breathe faster and appear bluish. These symptoms usually begin during the first 24 hours after the baby is born. If this happens to your baby you should contact your midwife and/or doctor immediately.
If you take Duloxetine near the end of your pregnancy, your baby might have some symptoms when it is born. These usually begin at birth or within a few days of your baby being born. These symptoms may include floppy muscles, trembling, jitteriness, not feeding properly, trouble with breathing and fits. 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.
Duloxetine may make you feel sleepy or dizzy. Do not drive or use any tools or machines until you know how Duloxetine affects you.
Duloxetine Capsules contains sucrose. If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product.
This medicine contains less than 1 mmol sodium (23 mg) per capsule, 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.
Duloxetine is for oral use. You should swallow your capsule whole with a drink of water.
The recommended dose of Duloxetine is 40 mg twice a day (in the morning and late afternoon/ evening). Your doctor may decide to start your treatment with 20 mg twice a day for two weeks before increasing the dose to 40 mg twice a day.
To help you remember to take Duloxetine, you may find it easier to take it at the same times every day.
Do not stop taking Duloxetine, or change your dose, without talking to your doctor. Treating your disorder properly is important to help you get better.
If it is not treated, your condition may not go away and may become more serious and difficult to treat.
Call your doctor or pharmacist immediately if you take more than the amount of Duloxetine prescribed by your doctor. Symptoms of overdose include sleepiness, coma, serotonin syndrome (a rare reaction which may cause feelings of great happiness, drowsiness, clumsiness, restlessness, feeling of being drunk, fever, sweating or rigid muscles), fits, vomiting and fast heart rate.
If you miss a dose, take it as soon as you remember. However, if it is time for your next dose, skip the missed dose and take only a single dose as usual. Do not take a double dose to make up for a forgotten dose. Do not take more than the daily amount of Duloxetine that has been prescribed for you in one day.
DO NOT stop taking your capsules without the advice of your doctor even if you feel better. If your doctor thinks that you no longer need Duloxetine he or she will ask you to reduce your dose over 2 weeks.
Some patients, who suddenly stop taking Duloxetine after more than 1 week of therapy, have had symptoms such as:
These symptoms are usually not serious and disappear within a few days, but if you have symptoms that are troublesome you should ask your doctor for advice.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist or nurse.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
These effects are normally mild to moderate and often disappear after a short time.
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 1000 people)
Very rare: (may affect up to 1 in 10,000 people)
Frequency not known (cannot be estimated from the available data)
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 national reporting system listed in Yellow Card Scheme. Website: 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.
This medicine does not require any special storage conditions.
Do not use this medicine after the expiry date which is stated on the label, carton and bottle after EXP.The expiry date refers to the last day of that month.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines no longer required. These measures will help to protect the environment.
Gastro-resistant capsule, hard
Duloxetine 20 mg gastro-resistant capsules, hard
Green opaque /green opaque, size “4” hard gelatin capsules filled with white to off white pellets and imprinted with “DLX” on green opaque cap and "20" on green opaque body with black ink
Duloxetine 40 mg gastro-resistant capsules, hard
Blue opaque /orange opaque, size “2” hard gelatin capsules filled with white to off white pellets and imprinted with "DLX" on blue opaque cap and "40" on orange opaque body with black ink
Duloxetine capsules are available in foil blister packs and HDPE bottle packs.
Pack sizes:
Blister packs: 14, 28, 56 and 98 capsules, hard
HDPE bottle pack: 30, 98, 250 and 1000 capsules, hard
Not all pack sizes may be marketed.
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This leaflet was last revised in 10/2025.
P1540409
Milpharm Limited, 1 Roundwood Avenue, Stockley Park, Uxbridge, UB11 1AF, UK
+ 44 (0)208 845 8811
+44 (0)208 845 8811
http://www.aurobindo.com
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