Vortioxetine

Major Depressive Disorder

Vortioxetine is specifically indicated for the treatment of major depressive disorder (MDD). This condition involves more than just feeling sad; it is a clinical diagnosis characterized by a persistent low mood and a loss of interest in activities that interferes with daily functioning.

The medication is used to help manage various symptoms associated with depression, including:

• Persistent feelings of sadness or hopelessness.
• Loss of interest in hobbies or social interactions.
• Changes in appetite or sleep patterns.
• Low energy or fatigue.
• Difficulty concentrating or making decisions.

The goal of treatment is to improve mood and help restore the patient's ability to perform everyday tasks. It is intended for use in adults and is not approved for use in pediatric patients.

Vortioxetine is a type of antidepressant used to treat major depressive disorder. It works by affecting the levels and activity of serotonin, a natural substance in the brain that helps maintain mental balance and regulate mood.

The medication is considered multimodal because it interacts with the serotonin system in more than one way:

• Increasing Serotonin Levels: It prevents the brain from reabsorbing serotonin too quickly. This process, known as reuptake inhibition, leaves more serotonin available to transmit messages between nerve cells.
• Targeting Receptors: Unlike some other antidepressants that only block reuptake, vortioxetine also binds directly to various serotonin receptors. It can stimulate certain receptors while blocking others, which helps fine-tune the serotonin signals in the brain.

By adjusting how serotonin functions, vortioxetine helps to stabilize brain chemistry and relieve the symptoms of depression. Although the exact mechanism is complex, the primary goal is to improve the communication between nerve cells involved in mood regulation.

Common Side Effects

The most frequently reported side effect of vortioxetine is nausea, which is often mild to moderate and may decrease over time. Other common side effects include:

• Constipation or diarrhea
• Vomiting
• Dizziness
• Dry mouth
• Gas
• Strange or vivid dreams

Serious Side Effects

While less common, some side effects can be serious. Contact a healthcare provider immediately if you experience any of the following:

• Serotonin Syndrome: This is a potentially life-threatening condition. Symptoms include agitation, hallucinations, fever, sweating, shivering, fast heart rate, muscle stiffness, twitching, loss of coordination, nausea, vomiting, or diarrhea.
• Low Sodium Levels: Signs may include headache, confusion, problems concentrating, memory impairment, weakness, or feeling unsteady.
• Abnormal Bleeding: An increased risk of bruising or bleeding, especially if you also take blood thinners or nonsteroidal anti-inflammatory drugs (NSAIDs).
• Vision Changes: Eye pain, changes in vision, or swelling and redness in or around the eye.
• Manic Episodes: Greatly increased energy, severe trouble sleeping, racing thoughts, reckless behavior, or unusually grand ideas.
• Seizures: Convulsions or fits.
• Allergic Reactions: Severe rash, hives, swelling of the face, tongue, or throat, or difficulty breathing.

Suicidal Thoughts and Behaviors

Antidepressants, including vortioxetine, may increase the risk of suicidal thoughts and behaviors in children, adolescents, and young adults. It is important for caregivers and family members to monitor for new or worsening symptoms of depression, unusual changes in behavior, or thoughts of self-harm, especially during the first few months of treatment or when the dose is adjusted.

Serotonin Syndrome

A potentially life-threatening condition called serotonin syndrome can occur, particularly when vortioxetine is used with other medications that increase serotonin levels, such as MAOIs, SSRIs, SNRIs, or triptans. Symptoms may include:

• Agitation, hallucinations, or coma
• Fast heartbeat or changes in blood pressure
• Muscle stiffness, tremors, or lack of coordination
• Nausea, vomiting, or diarrhea

Increased Risk of Bleeding

Vortioxetine may increase the risk of bleeding events, ranging from bruising and nosebleeds to life-threatening hemorrhages. This risk is higher if the medication is taken with aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, or blood thinners like warfarin.

Mania and Bipolar Disorder

In patients with bipolar disorder, using an antidepressant alone may trigger a mixed or manic episode. Patients should be screened for a history of mania or bipolar disorder before starting treatment.

Hyponatremia

Low blood sodium levels (hyponatremia) can occur during treatment, often as a result of the syndrome of inappropriate antidiuretic hormone secretion (SIADH). This risk is higher for older adults, those taking diuretics, or individuals who are otherwise dehydrated.

Angle-Closure Glaucoma

Vortioxetine can cause the pupils to dilate, which may trigger an angle-closure attack in people with narrow eye angles. Symptoms of an attack include eye pain, vision changes, and swelling or redness in or around the eye.

Discontinuation Symptoms

Stopping vortioxetine abruptly can lead to withdrawal-like symptoms. If the medication is to be stopped, a gradual reduction in the dose is typically recommended to minimize these effects.

Medication Name Confusion

The FDA has warned about potential prescribing and dispensing errors due to name confusion between the brand name for vortioxetine (Trintellix, formerly Brintellix) and the blood thinner Brilinta. Patients should confirm they have received the correct medication at the pharmacy.

Pregnancy

Information regarding the use of vortioxetine during pregnancy is limited. Studies in animals have shown that high doses of the medication may be associated with decreased fetal weight and delayed bone development. If used during the third trimester, newborns may be at risk for complications or withdrawal-like symptoms, including:

• Respiratory distress or bluish skin
• Seizures or tremors
• Feeding difficulties or vomiting
• Temperature instability
• Irritability or constant crying

Decisions regarding the use of this medication during pregnancy should be made in consultation with a doctor. It is generally advised not to stop taking antidepressant medication without medical supervision, as untreated depression can also pose risks to the pregnancy.

Breastfeeding

It is not known if vortioxetine is excreted in human breast milk, although animal studies have shown the drug is present in the milk of lactating rats. Because the potential risk to a nursing infant is unknown, healthcare providers should help evaluate whether to discontinue nursing or discontinue the drug, taking into account the importance of the medication to the mother.

Available Forms

Vortioxetine is available in the following dosage form:

• Oral Tablet: This medication is taken by mouth, usually once per day.

The tablets are designed to be swallowed whole. They can be taken with or without food. Healthcare providers determine the appropriate schedule based on the individual patient's needs.

FDA Approval and Indications

Vortioxetine was approved by the U.S. Food and Drug Administration (FDA) in September 2013. It is specifically indicated for the treatment of major depressive disorder (MDD) in adult patients.

Boxed Warning

The medication carries a boxed warning, the FDA's most serious type of warning, regarding the increased risk of suicidal thoughts and actions in children, adolescents, and young adults (up to age 24). It is not approved for use in pediatric patients. Healthcare providers are advised to monitor all patients closely for clinical worsening or unusual changes in behavior, especially during the first few months of treatment or following dose adjustments.

Regulatory History and Name Change

In 2016, the FDA approved a name change for the drug from Brintellix to Trintellix. This change was implemented to reduce the risk of prescribing and dispensing errors caused by confusion with the blood-thinning medication Brilinta (ticagrelor). The FDA issued safety communications to alert healthcare professionals and patients about these potential errors before the name change was finalized.

Safety Monitoring

The FDA monitors the safety of vortioxetine through the FDA Adverse Event Reporting System (FAERS). Potential signals of serious risks or new safety information are periodically identified and evaluated to determine if regulatory actions, such as labeling changes, are necessary.

Discontinuation Symptoms

If you stop taking vortioxetine abruptly, you may experience withdrawal symptoms. These effects are more likely to occur if you have been taking the medication for an extended period. Reported symptoms include:

• Headache
• Muscle tension
• Dizziness
• Nausea
• Runny nose

Safe Discontinuation

To minimize the risk of withdrawal effects, healthcare providers typically recommend a gradual reduction in dosage rather than stopping the medication all at once. This process, known as tapering, allows the body to adjust slowly to the change in medication levels. Do not stop taking vortioxetine or change your dose without first speaking to your doctor, as they can provide a specific schedule to help you discontinue the drug safely.