Duloxetine (Cymbalta) 101: The Basics of This Antidepressant Drug

Whether you suffer from depression, anxiety or pain, there comes a point when you might have to accept that your condition isn’t going away on its own. That you’ve given it enough time, and now is the time to reach out for help. 

Getting treatment for depression — or any number of mental health conditions — can be a big step. A big, difficult step, for many. 

But there are tools out there to help. One such tool: medication. 

Whether you’ve been living with depression, anxiety, chronic pain or other diagnoses for years, or if you have yet to talk to your healthcare provider about it, duloxetine may provide some relief. 

Read on to learn more about this antidepressant drug, and whether it makes sense to discuss it as a potential treatment option with your healthcare provider. 

What Is Duloxetine? 

Duloxetine, also known by its brand name Cymbalta®, is primarily an antidepressant drug used to treat several conditions, including major depressive disorder and generalized anxiety disorder, as well as diabetic nerve pain (peripheral neuropathy), fibromyalgia and chronic pain. 

It was approved by the Food and Drug Administration (FDA) in 2004 and is available by prescription.

Duloxetine comes in 20mcg, 30mcg and 60 mcg delayed release capsules. The dose your healthcare provider prescribes is dependent on many factors, including your diagnosis and age.

How Does Duloxetine Work? 

Duloxetine is known as a serotonin and norepinephrine reuptake inhibitor, or SNRI. This group of drugs works by blocking the brain’s reabsorption of two key neurotransmitters: serotonin and norepinephrine. 

By leaving more of these chemicals free to work in the brain, SNRIs are thought to alter brain chemistry and the communication circuitry in the brain that can help regulate mood — and ultimately relieve depression and other symptoms.

Other SNRIs include: venlafaxine (Effexor XR®), levomilnacipran (Fetzima®) and desvenlafaxine (Pristiq®).

When you start taking duloxetine, it may take a while for you to see full benefits on your mood. Once your depression (or other) symptoms are relieved, it’s important to continue the medication, as stopping it can cause your symptoms to return.

Also, it’s important to not stop taking duloxetine suddenly and without a healthcare professional’s guidance, as it can lead to withdrawal effects such as irritability, nausea, dizziness, nightmares, headaches, vomiting and pins and needles sensations.

Who Is Duloxetine Right For? 

As with most prescription drugs, duloxetine isn’t right for everyone. 

For instance, people with chronic liver and kidney disease shouldn’t take it. 

Also, there are several medications that can cause serious drug interactions — such as serotonin syndrome — when taken with duloxetine. 

MAOIs are one such class of medication. Be sure to tell your healthcare provider about all medications you’re on to prevent such reactions. 

Duloxetine can cause increased suicidal thoughts and behaviors, particularly in children, adolescents and young adults, so people in these age groups should seriously weigh the benefits vs. risks of this medication.  

Duloxetine Side Effects and Risks 

The list of possible side effects for duloxetine is relatively long, but that doesn’t mean you’ll experience all (or even any) of them. 

Common side effects of duloxetine in adults include: nausea, decreased appetite, somnolence (drowsiness), dry mouth, constipation, decreased appetite and hyperhidrosis (excessive sweating).

Less common side effects include belching and sour stomach, increased heart rate, pins and needles feeling, changes in taste sensation, changes with ejaculation, decreased interest in sex, warmth in the upper body, erection problems, diarrhea, trembling of hands and feet, indigestion, heartburn and swollen joints.

Rare but serious side effects including liver failure, bleeding problems, blood pressure fluctuations, and heart attacks are also possible. Your healthcare provider can help determine if you’re at a greater risk of these serious adverse effects given your medical history, and can provide medical advice on how to reduce your risk of side effects, in general.

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This article is for informational purposes only and does not constitute medical advice. The information contained herein is not a substitute for and should never be relied upon for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment.