Key points
- Duloxetine has both mental health and pain approvals on its label.
- Its generalized anxiety approval reaches down to age 7, while its depression approval is for adults only.
- The label warns of liver failure, sometimes fatal, and says to avoid it with substantial alcohol use or chronic liver disease.
- Fainting, dizziness on standing and falls are specific warnings, most often in the first week or after a dose increase.
- It should not be stopped suddenly: talk with your prescriber first.
What duloxetine is
Duloxetine is a serotonin and norepinephrine reuptake inhibitor (SNRI). It is sold as generic delayed-release capsules. Drizalma Sprinkle is a current brand, and its label says the capsule can be opened and sprinkled over applesauce for people who have trouble swallowing.
The standard generic capsule is different. Its label says to swallow it whole and not to chew it, crush it or open it onto food, because that may affect the coating.
What it is approved for, and off-label use
The current label for generic duloxetine capsules lists these Food and Drug Administration (FDA) approved uses. The age limits differ by condition, and the Drizalma Sprinkle label is narrower for fibromyalgia, listing adults only.
- Major depressive disorder in adults.
- Generalized anxiety disorder in adults and in children 7 and older.
- Nerve pain from diabetes in adults.
- Fibromyalgia in adults and in teens 13 and older.
- Chronic muscle and joint pain in adults, studied in low back pain and osteoarthritis.
Off-label use and what is not on the label
MedlinePlus says duloxetine is also sometimes used to treat stress urinary incontinence in women. That use is off-label. PTSD and panic disorder are not on its FDA labels.
How it is thought to work
The label says the exact way duloxetine works on depression, anxiety and pain signals is unknown. It is believed to involve raising the activity of serotonin and norepinephrine in the central nervous system.
What taking duloxetine can be like
MedlinePlus says it may take 1 to 4 weeks or longer to feel the full benefit. The National Institute of Mental Health (NIMH) notes that people respond differently and that finding the right medicine can take several tries, so honest updates to your prescriber are useful.
The label says fainting and dizziness on standing tend to occur in the first week but can happen at any time, particularly after a dose increase, and it warns about falls. Tell your prescriber if you notice them.
Do not stop duloxetine suddenly or without talking to your prescriber. Symptoms after stopping on the label include dizziness, headache, nausea, diarrhea, tingling, irritability, vomiting, trouble sleeping, anxiety, sweating and fatigue.
Side effects and warnings
Boxed warning: antidepressants increased the risk of suicidal thoughts and behaviors in children, teens and young adults in short-term studies. The studies did not show an increase in people over 24, and the label reports a lower risk at 65 and older. People of all ages who begin an antidepressant should be watched closely for worsening or new suicidal thoughts, and that matters here because duloxetine is approved for some children and teens. If you are in crisis, call or text 988 or call 911. Locascio Wellness does not provide emergency services.
Liver warning: the label reports liver failure, sometimes fatal. It says to avoid duloxetine with substantial alcohol use or chronic liver disease. Call your prescriber right away about yellow skin or eyes, dark urine or pain in the upper right belly.
Dangerous combinations: the label does not allow duloxetine together with monoamine oxidase inhibitors (MAOIs) used for psychiatric conditions, because of serotonin syndrome. It sets a gap of at least 5 days after duloxetine before an MAOI and at least 14 days after an MAOI before duloxetine. It also should not be begun in someone being treated with linezolid or intravenous methylene blue. The label says duloxetine and thioridazine should not be taken together, and it warns about fluvoxamine and other strong inhibitors of the enzyme that breaks it down.
The most commonly reported side effects in adults are nausea, dry mouth, sleepiness, constipation, lower appetite and sweating. In children and teens they are weight loss, lower appetite, nausea, vomiting, fatigue and diarrhea.
- Severe skin reactions, including Stevens-Johnson syndrome: blisters, peeling rash or sores in the mouth need medical care right away.
- Bleeding: the risk may increase with aspirin, anti-inflammatory pain relievers or warfarin.
- Also on the label: raised blood pressure, urinary hesitation, sexual problems, low sodium, angle-closure glaucoma, seizures, and mania in people with bipolar disorder.
Can duloxetine be managed online in Pennsylvania and New York
The label gives duloxetine no controlled-substance schedule and describes no certified setting or restricted program. Blood pressure and any liver blood tests your prescriber wants cannot happen over video, so ask how they would be arranged.
A licensed psychiatrist on our team, a Doctor of Osteopathic Medicine (DO), treats anxiety and depression online by secure video, for people physically located in Pennsylvania or New York during each visit. Ages, fees and coverage are questions to ask us. Whether it is an option for you is a decision for you and your prescriber. Ask us whether our psychiatrist can help. You can also read the full medicines list.
Our therapists do not prescribe. They see clients in Pennsylvania, West Virginia, Arizona, Colorado and Florida, not New York, so a New York reader can get psychiatry here but not therapy here. If another clinician is treating your pain, tell them about any medicine you take too.
Common questions
Is duloxetine approved for anxiety?
Yes, for one anxiety condition. The label lists generalized anxiety disorder in adults and in children 7 and older. Other anxiety conditions, such as panic disorder and social anxiety, are not on its FDA labels. Whether duloxetine fits your situation is a decision for you and your prescriber, who can explain what is and is not an approved use.
Can I drink alcohol while taking duloxetine?
Ask your prescriber before you do. The label warns about liver injury and says duloxetine should be avoided with substantial alcohol use. MedlinePlus advises telling your doctor if you drink or have ever drunk large amounts of alcohol. Be honest about how much you drink, because this affects whether the medicine is safe for you.
Should I tell my prescriber if I am pregnant or breastfeeding?
Yes. Tell your prescriber if you are pregnant, planning a pregnancy or breastfeeding, and do not stop duloxetine on your own because of it. Your prescriber can go over what the label says about your situation. Share every medicine and supplement you take as well, since aspirin, anti-inflammatory pain relievers and St. John's wort can matter.
Sources
Published by Locascio Wellness. Published November 5, 2026. Clinically reviewed by Kenneth M. Levy, DO, Psychiatrist (Pennsylvania license OS007464L). This page is general information, not medical advice or a diagnosis.