Trintellix

Treatment of Major Depressive Disorder

Trintellix is specifically approved to treat major depressive disorder (MDD) in adults. MDD is a medical condition characterized by persistent feelings of sadness and a loss of interest in daily activities that lasts for at least two weeks.

Healthcare providers prescribe this medication to help manage the symptoms of clinical depression, which may include:

• Feelings of hopelessness or pessimism
• Loss of energy or increased fatigue
• Difficulty sleeping or oversleeping
• Changes in appetite or weight
• Difficulty concentrating or making decisions

Trintellix is intended for use in adults only and has not been established as safe or effective for use in children.

Mechanism of Action

Trintellix (vortioxetine) is a medication used to treat major depressive disorder. While the exact way it works is not fully understood, it is believed to help restore the balance of certain natural chemicals in the brain that affect mood.

The medication primarily targets serotonin, a neurotransmitter that helps regulate emotions, sleep, and appetite. Trintellix works through two main processes:

• Serotonin Reuptake Inhibition: It blocks the reabsorption (reuptake) of serotonin into nerve cells. This increases the amount of serotonin available in the spaces between cells, allowing for better communication between neurons.
• Receptor Modulation: Trintellix also interacts directly with several different types of serotonin receptors. It acts as an agonist for some receptors (stimulating them) and an antagonist for others (blocking them). This multi-action approach is thought to further enhance serotonin activity in the brain.

By increasing serotonin levels and modulating receptor activity, Trintellix helps alleviate the symptoms of depression. It may take several weeks of consistent use before the full effects on mood are felt.

Common Side Effects

The most frequently reported side effect of Trintellix is nausea. Other common side effects may include:

• Constipation
• Vomiting
• Dizziness
• Dry mouth
• Gas
• Unusual dreams

Sexual Side Effects

Some people may experience changes in sexual function while taking this medication, such as:

• Decreased sex drive
• Difficulty achieving orgasm
• Erectile dysfunction
• Delayed ejaculation

Serious Side Effects

Contact a healthcare provider immediately if you experience any of the following serious symptoms:

• Serotonin syndrome: This is a potentially life-threatening condition. Symptoms include agitation, hallucinations, rapid heartbeat, fever, excessive sweating, muscle stiffness, twitching, or loss of coordination.
• Abnormal bleeding: There is an increased risk of bruising or bleeding, especially if Trintellix is taken with blood thinners or nonsteroidal anti-inflammatory drugs (NSAIDs).
• Low sodium levels: Also known as hyponatremia, signs include headache, confusion, weakness, or feeling unsteady.
• Manic episodes: Symptoms include greatly increased energy, severe trouble sleeping, racing thoughts, or reckless behavior.
• Vision problems: Eye pain, changes in vision, or swelling and redness in or around the eye.
• Seizures: Convulsions or fits.

Suicidal Thoughts and Behaviors

Trintellix and other antidepressant medicines may increase suicidal thoughts or actions in some children, teenagers, or young adults, especially within the first few months of treatment or when the dose is changed. Depression and certain other mental illnesses are themselves associated with an increased risk of suicide. Patients of all ages should be monitored closely for worsening symptoms, new or sudden changes in mood, behavior, thoughts, or feelings.

Serotonin Syndrome

A potentially life-threatening condition called serotonin syndrome can occur. This risk is higher when Trintellix is taken with certain other medicines, such as MAOIs, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, and St. John's Wort. Symptoms may include agitation, hallucinations, fast heartbeat, dizziness, muscle tremors, or seizures.

Contraindications

Trintellix should not be used in patients who:

• Are allergic to vortioxetine or any of the ingredients in the medication.
• Are taking or have recently stopped taking a monoamine oxidase inhibitor (MAOI). At least 14 days should pass between stopping an MAOI and starting Trintellix. Conversely, at least 21 days should pass after stopping Trintellix before starting an MAOI.
• Are receiving intravenous methylene blue or linezolid.

Increased Risk of Bleeding

This medication may increase the risk of bleeding events. This risk is further increased if taken with aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, warfarin, or other blood thinners.

Other Precautions

• Manic Episodes: In people with bipolar disorder, Trintellix may trigger a mixed or manic episode.
• Angle-Closure Glaucoma: This medication may cause a type of eye problem called angle-closure glaucoma. Patients may want to have an eye exam to see if they are at risk for this condition.
• Low Sodium Levels: Some people, especially the elderly, may develop low sodium levels in the blood (hyponatremia) while taking this medication.
• Discontinuation: Stopping the medication suddenly can cause side effects such as headache, muscle tension, or mood changes. A gradual reduction in dose is usually recommended.
• Dispensing Errors: Due to name similarities between the original name (Brintellix) and the blood thinner Brilinta, the name was changed to Trintellix to prevent medication errors.

Pregnancy

There is limited information regarding the safety of Trintellix (vortioxetine) during pregnancy. While there are no well-controlled studies in humans, healthcare providers generally advise caution because the effects on a developing fetus are not fully known.

Taking certain antidepressants, including those with mechanisms similar to Trintellix, during the third trimester may increase the risk of complications for the newborn. These complications can include:

• Respiratory distress (difficulty breathing)
• Feeding difficulties
• Tremors, jitteriness, or irritability
• Persistent pulmonary hypertension of the newborn (PPHN), a serious condition affecting the baby's lungs

If you become pregnant while taking Trintellix, do not stop taking the medication without consulting your doctor. Untreated depression during pregnancy also carries risks for both the parent and the baby, and a healthcare provider can help weigh the options for treatment.

Breastfeeding

It is currently unknown whether Trintellix passes into human breast milk. In animal studies, the medication was found in the milk of lactating animals. Because the effects on a nursing infant are not fully understood, you should discuss the risks and benefits of breastfeeding while using this medication with your healthcare provider. They will consider the importance of the drug to the mother's health versus the potential risks to the infant.

Available Forms

Trintellix is supplied as an immediate-release tablet for oral use. It is not currently available in other forms such as liquids, injections, or extended-release versions.

• Oral Tablet: The tablets are teardrop-shaped and film-coated.

The tablets are produced in different colors to help distinguish between the various options your healthcare provider may prescribe.

FDA Approval and Indications

Trintellix (vortioxetine) was approved by the U.S. Food and Drug Administration (FDA) in September 2013 for the treatment of major depressive disorder (MDD) in adults. It is classified as an antidepressant and is not approved for use in pediatric patients.

Boxed Warning

The FDA requires a boxed warning for Trintellix, which is the most serious type of warning in prescription drug labeling. This warning states that antidepressants may increase the risk of suicidal thoughts and behaviors in children, adolescents, and young adults up to age 24. Healthcare providers are advised to monitor patients closely for clinical worsening or unusual changes in behavior, especially during the first few months of treatment or following dosage adjustments.

Regulatory History and Name Change

The medication was originally marketed under the brand name Brintellix. In 2016, the FDA approved a name change to Trintellix to reduce the risk of prescribing and dispensing errors. This change was implemented because the original name was frequently confused with Brilinta, a blood-thinning medication. The FDA issued safety communications to alert healthcare professionals and the public about this potential for medication errors.

Safety Monitoring

The FDA monitors the safety of Trintellix through the FDA Adverse Event Reporting System (FAERS). In 2015, the FDA identified potential signals of serious risks, including hepatotoxicity (liver injury), through this system. Such signals lead to further evaluation by the FDA to determine if changes to the drug's labeling or other regulatory actions are necessary to ensure patient safety.

Withdrawal Symptoms

If you stop taking Trintellix suddenly, you may experience discontinuation symptoms. These are more likely to occur if you have been taking higher doses. Reported symptoms include:

• Dizziness, headache, or nausea
• Mood changes, such as irritability, anxiety, or agitation
• Sleep problems, including insomnia or vivid dreams
• Sensory disturbances, such as tingling, numbness, or electric shock sensations
• Sweating, confusion, or fatigue

How to Stop Safely

To minimize the risk of withdrawal, your healthcare provider will typically recommend gradually reducing your dose rather than stopping all at once. For those taking 15 mg or 20 mg daily, the dose is often lowered to 10 mg daily for one week before stopping completely. If you experience bothersome symptoms while tapering, your doctor may suggest a slower reduction schedule.