Duloxetine
Duloxetine is an SNRI used in the UK for major depression, generalised anxiety disorder, diabetic nerve pain (neuropathy), and some chronic pain conditions when a prescriber judges it appropriate. It is one option among several; your clinician will explain the plan and how long to try it.
This medicine is part of the Mental health medicines and Pain relief categories.
Generic name: duloxetine
Quick answers
Short replies to searches people often run before speaking to a clinician. For the overview of what the medicine is used for, see the short summary under the page title above.
What is it for?
Duloxetine is an SNRI used in the UK for major depression, generalised anxiety disorder, diabetic nerve pain (neuropathy), and some chronic pain conditions when a prescriber judges it appropriate.
How long does it take to work?
Many antidepressants need several weeks on a steady dose before full benefit; your GP usually reviews you in that window.
What are common side effects?
Common effects include nausea, dry mouth, constipation, dizziness, fatigue, reduced appetite, and sweating.
Can you take paracetamol or ibuprofen with it?
Other serotonergic drugs, tramadol, triptans, NSAIDs, anticoagulants, and some heart medicines need review.
More about what Duloxetine is used for
Duloxetine is an SNRI used in the UK for major depression, generalised anxiety disorder, diabetic nerve pain (neuropathy), and some chronic pain conditions when a prescriber judges it appropriate.
It is one option among several; your clinician will explain the plan and how long to try it.
How does Duloxetine work, and how long does it take to work?
It increases serotonin and noradrenaline activity, which may help mood and anxiety and dampen certain pain signalling pathways.
Benefits for mood or pain may take several weeks to become clear.
How and when should you take Duloxetine?
Duloxetine is usually taken once or twice daily as directed on your label. Swallow capsules whole — do not open or sprinkle unless a specialist advises a specific approach.
Do not stop suddenly; your GP may suggest a gradual reduction to limit withdrawal-type symptoms.
What are the common side effects of Duloxetine?
Common effects include nausea, dry mouth, constipation, dizziness, fatigue, reduced appetite, and sweating. Nausea often improves with time.
Sexual side effects can occur. Speak to your GP if symptoms are difficult to manage.
Serious side effects of Duloxetine — when to get urgent help
Seek urgent help for suicidal thoughts, severe agitation, liver problems (yellowing, severe abdominal pain), chest pain, severe hypertension, fits, or serotonin syndrome symptoms.
Heavy alcohol use with duloxetine increases liver risk — discuss safe limits with your clinician.
What if you miss a dose of Duloxetine?
If you miss a dose, take it when you remember unless the next dose is due soon. Do not take a double dose.
Who should not take Duloxetine?
Not used with MAOIs within unsafe intervals. Caution in severe kidney or liver problems, uncontrolled narrow-angle glaucoma, bipolar disorder, and bleeding risk.
St John’s wort must not be combined with duloxetine.
Can you take paracetamol or ibuprofen with Duloxetine? — other interactions
Other serotonergic drugs, Tramadol, triptans, NSAIDs, anticoagulants, and some heart medicines need review. Always check before adding new drugs.
Duloxetine in pregnancy and breastfeeding
Discuss with your GP or specialist before use in pregnancy or breastfeeding.
Blood tests and monitoring on Duloxetine
Blood pressure may be checked after starting or dose changes. Liver function tests may be used in some people.
What might your GP prescribe instead of Duloxetine?
Your team may consider Venlafaxine, SSRIs, gabapentinoids, or other pain or mood treatments depending on your condition.
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Reviewed by UK registered pharmacists for accuracy and clarity. Content is informational only.
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Frequently asked questions about Duloxetine
People also ask — common Google searches
- What is Duloxetine used for?
- Duloxetine is an SNRI used in the UK for major depression, generalised anxiety disorder, diabetic nerve pain (neuropathy), and some chronic pain conditions when a prescriber judges it appropriate. It is one option among several; your clinician will explain the plan and how long to try it.
- How long does Duloxetine take to work?
- Many antidepressants need several weeks on a steady dose before full benefit; your GP usually reviews you in that window. Always follow your prescriber’s follow-up plan.
- Can you take Duloxetine with paracetamol or ibuprofen?
- Other serotonergic drugs, Tramadol, triptans, NSAIDs, anticoagulants, and some heart medicines need review.
- What are the side effects of Duloxetine?
- Common effects include nausea, dry mouth, constipation, dizziness, fatigue, reduced appetite, and sweating. Nausea often improves with time. See the sections below for more detail, including serious side effects and when to seek urgent help.
- How long does duloxetine take to work for nerve pain?
- Some people notice improvement within a few weeks; others need longer on a stable dose. Your prescriber will review progress and side effects.
- Duloxetine vs venlafaxine — what is the difference?
- Both are SNRIs but have different licensed uses and side-effect profiles. Your prescriber chooses based on your diagnosis, other health issues, and medicines.
Need personalised advice?
Your local pharmacist or GP surgery can help with questions about your medicines, side effects, and alternatives that may be suitable for you.
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Often used with
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