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levomilnacipran

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Brand names: Fetzima

Serotonin-Norepinephrine Reuptake Inhibitor (SNRI) Rx

Fetzima is a medicine used to treat major depressive disorder (MDD) in adults. It helps to improve your mood by affecting certain chemicals in the brain.

Drug Pricing (NADAC)

Brand Price

$16.13/unit

Generic Available

No

ABBVIE

Pricing data from NADAC (CMS), effective January 2, 2024. Compare all drug costs →

What it does

Fetzima is used to treat major depressive disorder (MDD) in adults.

Common side effects

Nausea, Constipation, Increased sweating

Key warnings

Antidepressants may increase the risk of suicidal thoughts and behaviors in young adults.

How It Works

Fetzima is a type of drug called a serotonin-norepinephrine reuptake inhibitor (SNRI). It works by increasing the levels of serotonin and norepinephrine in your brain. These chemicals can help improve your mood and reduce symptoms of depression.

How to Take It

Take Fetzima exactly as your doctor tells you to. The usual dose is between 40 mg and 120 mg once a day. You can take it with or without food. Swallow the capsule whole; do not crush, chew, or open it.

Pregnancy & Breastfeeding

Tell your doctor if you are pregnant or plan to become pregnant. Using Fetzima in the last months of pregnancy may cause problems in the newborn. There is a pregnancy registry for women who take antidepressants during pregnancy.

Missed Dose

If you miss a dose, take it as soon as you remember. If it is close to your next dose, skip the missed dose and continue with your regular schedule.

Storage

Store Fetzima at room temperature, away from moisture and heat.

Side Effects (from patient reports)

Based on 2,050 FDA adverse event reports.

Using the medicine for something it's not approved for
327
The medicine is not working
246
Pain
210
Throwing up
208
Trouble remembering things
189
Numbness or tingling
179
Reduced sense of touch
178
Pain in the upper stomach area
175
Severe headache
170
Heartburn
168

FDA Adverse Event Report Analysis

Detailed analysis of 1,858 reports from the FDA Adverse Event Reporting System (FAERS). Reports span 2013–2025.

Total Reports

1,858

Death-Related Reports

154

Hospitalization Reports

283

Top Indication

Product Used For Unknown Indication

Gender Distribution

Female 1,310 (76%)
Male 407 (24%)

Age Distribution

0–17 31
18–44 469
45–64 396
65–74 110
75+ 36

Most Reported Adverse Reactions (FAERS)

# Reaction Reports
1 OFF LABEL USE 327
2 DRUG INEFFECTIVE 246
3 PAIN 210
4 VOMITING 208
5 MEMORY IMPAIRMENT 189
6 PARAESTHESIA 179
7 HYPOAESTHESIA 178
8 ABDOMINAL PAIN UPPER 175
9 MIGRAINE 170
10 GASTROOESOPHAGEAL REFLUX DISEASE 168
11 DRUG INTOLERANCE 162
12 TASTE DISORDER 157
13 EPILEPSY 155
14 BLEPHAROSPASM 152
15 NAUSEA 143

Reactions in Death Reports

OFF LABEL USE 95
MATERNAL EXPOSURE DURING PREGNANCY 91
CONDITION AGGRAVATED 89
OVERLAP SYNDROME 73
DRUG INEFFECTIVE 30
HYPOAESTHESIA 29
VOMITING 29
ABDOMINAL PAIN UPPER 27
DRUG INTOLERANCE 27
DEATH 26

Reactions in Hospitalization Reports

DRUG INEFFECTIVE 54
VOMITING 43
OFF LABEL USE 42
PAIN 39
HYPOAESTHESIA 38
MEMORY IMPAIRMENT 35
CONDITION AGGRAVATED 34
HYPERTENSION 33
PARAESTHESIA 33
ABDOMINAL PAIN UPPER 32

Source: FDA FAERS (Adverse Event Reporting System) FDA FAERS (Adverse Event Reporting System) Reports are voluntary and do not establish causation

Serious Warnings

Antidepressants may increase the risk of suicidal thoughts and behaviors in young adults. Your doctor should closely watch you for worsening depression or suicidal thoughts. Fetzima is not approved for use in children.

Known Drug Interactions

moderate linezolid

Within 14 days of stopping an MAOI intended to treat psychiatric disorders In a patient who is being treated with linezolid or intravenous methylene blue [see Dosage and Administration ( 2.5 , 2.6 ), Contraindications ( 4 ), and Warnings and Precautions ( 5.2 )] . Examples: selegiline, tranylcypromine, isocarboxazid, phenelzine, linezolid, methylene blue Other Serotonergic Drugs Clinical Impact: Concomitant use of FETZIMA with other serotonergic drugs increases the risk of serotonin syndrome.

Mechanism: Both of these medications increase the levels of a brain chemical called serotonin. If levels get too high, it can lead to a serious and potentially life-threatening reaction.

What to do: Do not take these two medicines together. Your doctor will typically wait at least two weeks after stopping one before starting the other.

moderate phenelzine

Examples: selegiline, tranylcypromine, isocarboxazid, phenelzine, linezolid, methylene blue Other Serotonergic Drugs Clinical Impact: Concomitant use of FETZIMA with other serotonergic drugs increases the risk of serotonin syndrome.

Mechanism: Both drugs increase serotonin levels in the brain, which can lead to a dangerous buildup called serotonin syndrome.

What to do: Do not take these medicines together because the combination can cause serious side effects.

Examples: selegiline, tranylcypromine, isocarboxazid, phenelzine, linezolid, methylene blue Other Serotonergic Drugs Clinical Impact: Concomitant use of FETZIMA with other serotonergic drugs increases the risk of serotonin syndrome.

Mechanism: These drugs both raise serotonin levels, and using them at the same time can cause too much serotonin to build up in your body.

What to do: Avoid using these two drugs together to prevent a potentially dangerous reaction.

moderate selegiline

Examples: selegiline, tranylcypromine, isocarboxazid, phenelzine, linezolid, methylene blue Other Serotonergic Drugs Clinical Impact: Concomitant use of FETZIMA with other serotonergic drugs increases the risk of serotonin syndrome.

Mechanism: Taking these medications together can cause serotonin levels to become dangerously high, leading to a condition called serotonin syndrome.

What to do: Talk to your doctor before using these together, as this combination is generally avoided.

Examples: other SNRIs, SSRIs, triptans, tricyclic antidepressants, opioids, lithium, buspirone, amphetamines, tryptophan, and St.

Mechanism: Both of these medicines increase the levels of a brain chemical called serotonin. Taking them together can cause serotonin levels to become dangerously high.

What to do: Your doctor should monitor you closely for signs of too much serotonin, such as shivering, sweating, or confusion. Tell your provider immediately if you feel unusual.

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Common Questions

What should I do if I feel worse after starting Fetzima?
Tell your doctor right away if you feel your depression is getting worse or if you have suicidal thoughts.
Can I drink alcohol while taking Fetzima?
No, you should avoid drinking alcohol while taking Fetzima.
What if I have kidney problems?
Tell your doctor if you have kidney problems, as your dose may need to be adjusted.
Can I stop taking Fetzima suddenly?
No, you should not stop taking Fetzima suddenly. Talk to your doctor about slowly reducing the dose to avoid withdrawal symptoms.
Will Fetzima affect my other medications?
Fetzima can interact with other medications. Tell your doctor about all the medicines you take, including over-the-counter drugs and supplements.
How long does it take for Fetzima to start working?
It may take several weeks for Fetzima to start working. Be patient and continue taking the medicine as prescribed.
What if I have bipolar disorder?
Tell your doctor if you have bipolar disorder, as Fetzima may trigger mania or hypomania.
Can Fetzima cause sexual side effects?
Yes, Fetzima can cause sexual side effects. Talk to your doctor if you experience any sexual problems.
What if I need surgery?
Tell your doctor if you are taking Fetzima before any surgery or dental procedure.
Is there a generic version of Fetzima?
No, there is currently no generic version of Fetzima available.
What are the common side effects of levomilnacipran?
The most commonly reported side effects of levomilnacipran include Nausea, Constipation, Increased sweating, Increased heart rate, Erectile dysfunction. Based on 2,050 FDA adverse event reports. Always consult your healthcare provider about potential side effects.
Does levomilnacipran interact with other medications?
Yes, levomilnacipran has 11 known drug interactions. Notable interactions include linezolid, phenelzine, tranylcypromine. Always inform your doctor about all medications you are taking.
What drug class is levomilnacipran?
levomilnacipran belongs to the Serotonin-Norepinephrine Reuptake Inhibitor (SNRI) drug class. It requires a prescription (Rx). Fetzima is used to treat major depressive disorder (MDD) in adults.
Is levomilnacipran safe during pregnancy?
Tell your doctor if you are pregnant or plan to become pregnant. Using Fetzima in the last months of pregnancy may cause problems in the newborn. Always consult your healthcare provider before using any medication during pregnancy or breastfeeding.

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What the FDA Data Shows for levomilnacipran

The FDA label for levomilnacipran (sold under brand names such as Fetzima) classifies it as a prescription-only medication in the Serotonin-Norepinephrine Reuptake Inhibitor (SNRI) class. Fetzima is used to treat major depressive disorder (MDD) in adults. Official labeling lists 9 commonly reported side effects, including Nausea, Constipation, Increased sweating.

Post-market surveillance from the FDA Adverse Event Reporting System (FAERS) captures real-world experience. For this drug, FAERS contains 2,050 voluntary reports. The database also lists 11 documented drug interactions derived from FDA labeling, with the top-flagged interaction rated moderate severity. NADAC pricing from CMS.

Report counts do not establish causation — a FAERS entry documents a temporal association, not proof that the drug produced the outcome. Widely prescribed medications naturally accumulate more reports than niche therapies, so raw totals must be interpreted alongside total exposure. Shortage status, recall history, and patent information further shape supply and switching decisions. This page summarizes public FDA data for educational purposes only and is not a substitute for professional medical advice — always consult a licensed healthcare provider before starting, stopping, or changing any medication.

Data Sources

Drug labeling: FDA Drug Labels (SPL/DailyMed). Adverse events: FDA Adverse Event Reporting System (FAERS). Pricing: CMS National Average Drug Acquisition Cost (NADAC).

FAERS reports are voluntary and do not establish causation. Drug interactions are derived from FDA labeling and clinical references. Always consult a healthcare professional before making medication decisions.

Last updated: April 30, 2024

All federal data sources used on this page