Cymbalta vs. Irenka

Are Cymbalta and Irenka the Same Thing?

Cymbalta (duloxetine) and Irenka (duloxetine capsule) are serotonin-norepinephrine reuptake inhibitor (SNRI) antidepressants used to treat major depressive disorder, generalized anxiety disorder, diabetic peripheral neuropathy, and chronic musculoskeletal pain.

Side effects of Irenka and Cymbalta that are similar include nausea, dry mouth, drowsiness, fatigue/tired feeling, difficulty sleeping (insomnia), constipation, dizziness, diarrhea, and decreased appetite.

Side effects of Irenka that are different from Cymbalta include headache, increased sweating, and abdominal pain.

Both Irenka and Cymbalta may interact with alcohol, other antidepressants, cimetidine, some antibiotics, triptans for migraine, aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), blood thinners, fentanyl, lithium, tramadol, tryptophan, buspirone, and St. John's wort.

Cymbalta may also interact with other drugs that make you sleepy or slow your breathing (sleeping pills, narcotics, muscle relaxers, or medicines for anxiety or seizures), and diuretics (water pills).

Irenka may also interact with monoamine oxidase inhibitors (MAOIs), aluminum- and magnesium-containing antacids, theophylline, caffeine, and desipramine.

Some patients may experience withdrawal reactions such anxiety, nausea, nervousness, and insomnia if they suddenly stop taking Cymbalta.

What Are Possible Side Effects of Cymbalta?

Common side effects of Cymbalta include:

  • nausea,
  • dry mouth,
  • constipation,
  • diarrhea,
  • fatigue,
  • tired feeling,
  • drowsiness,
  • difficulty sleeping,
  • loss of appetite, and
  • dizziness.

What Are Possible Side Effects of Irenka?

Common side effects of Irenka include:

  • nausea,
  • headache,
  • dry mouth,
  • drowsiness,
  • fatigue,
  • insomnia,
  • constipation,
  • dizziness,
  • diarrhea,
  • decreased appetite,
  • increased sweating, and
  • abdominal pain

What Is Cymbalta?

Cymbalta is a prescription medicine used to treat a certain type of depression called Major Depressive Disorder (MDD). Cymbalta belongs to a class of medicines known as SNRIs (or serotonin-norepinephrine reuptake inhibitors).

Cymbalta is also used to treat or manage:

What Is Irenka?

Irenka (duloxetine capsule) is a serotonin-norepinephrine reuptake inhibitor (SNRI) antidepressant used to treat major depressive disorder, generalized anxiety disorder, diabetic peripheral neuropathy, and chronic musculoskeletal pain.


Depression is a(n) __________ . See Answer

What Drugs Interact With Cymbalta?

Do Not take Cymbalta if you:

  • take a Monoamine Oxidase Inhibitor (MAOI). Ask your healthcare provider or pharmacist if you are not sure if you take an MAOI, including the antibiotic linezolid or intravenous methylene blue.
  • Do not take an MAOI within 5 days of stopping Cymbalta unless directed to do so by your healthcare provider.
  • Do not start Cymbalta if you stopped taking an MAOI in the last 14 days unless directed to do so by your healthcare provider.

Tell your healthcare provider about all the medicines that you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Cymbalta and some medicines may interact with each other, may not work as well, or may cause serious side effects.

What Drugs Interact With Irenka?

Irenka may interact with monoamine oxidase inhibitors (MAOIs), cimetidine, fluoroquinolone antibiotics, selective serotonin reuptake inhibitors (SSRIs), nonsteroidal anti-inflammatory drugs (NSAIDs), aspirin, warfarin, aluminum- and magnesium-containing antacids, theophylline, caffeine, desipramine, alcohol, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, and St. John's wort. Tell your doctor all medications and supplements you use.

How Should Cymbalta Be Taken?

Take Cymbalta exactly as your healthcare provider tells you to take it. Your healthcare provider may need to change the dose of Cymbalta until it is the right dose for you.

Swallow Cymbalta whole. Do not chew or crush Cymbalta.

Do not open the capsule and sprinkle on food or mix with liquids. Opening the capsule may affect how well Cymbalta works.

Cymbalta may be taken with or without food.

If you miss a dose of Cymbalta, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and take your next dose at the regular time. Do not take two doses of Cymbalta at the same time.

If you take too much Cymbalta, call your healthcare provider or poison control center at 1-800-222-1222 right away, or get emergency treatment.

How Should Irenka Be Taken?

The dose of Irenka is 40 mg/day (given as 20 mg twice daily) to 60 mg/day (given either once daily or as 30 mg twice daily) for major depressive disorder, and 60 mg/day for generalized anxiety disorder, diabetic peripheral neuropathy, and chronic musculoskeletal pain.


Learn to Spot Depression: Symptoms, Warning Signs, Medication See Slideshow

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Lilly. Cymbalta Medication Guide.

Dailymed. Irenka Product Information.

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