Celexa is the brand name for citalopram, a selective serotonin reuptake inhibitor antidepressant. It is primarily used for the treatment of major depressive disorder in adults. Citalopram works mainly by increasing the availability of serotonin, a neurotransmitter involved in mood regulation, in the brain. Celexa is available as an oral tablet, while generic citalopram is available in several formulations. FDA labeling identifies citalopram as an antidepressant indicated for adults with major depressive disorder.

Important Warnings while taking Celexa

Celexa carries a boxed warning concerning suicidal thoughts and behaviors associated with antidepressant use. Antidepressants can increase the risk of suicidal thinking and behavior in children, adolescents, and young adults, particularly during the early stages of treatment or after changes in dosage. Patients and caregivers should monitor for new or worsening depression, unusual behavioral changes, agitation, or suicidal thoughts and communicate concerning changes promptly to a healthcare professional. Celexa is not FDA-approved for pediatric patients.

One of the most important safety considerations with citalopram is dose-dependent QT interval prolongation. Changes in the heart's electrical activity can increase the risk of an abnormal heart rhythm called Torsade de Pointes, which can potentially lead to ventricular arrhythmia or sudden death. FDA labeling recommends that citalopram doses should not exceed 40 mg per day.

The maximum recommended dose is generally 20 mg per day for adults older than 60 years, patients with hepatic impairment, CYP2C19 poor metabolizers, or patients taking certain CYP2C19 inhibitors. Citalopram should also be used cautiously or avoided in people with conditions such as bradycardia, low potassium or magnesium, recent myocardial infarction, uncompensated heart failure, or other circumstances associated with increased QT risk.

Celexa can also cause serotonin syndrome, particularly when combined with other serotonergic medicines. Symptoms may include agitation, confusion, sweating, fever, rapid heart rate, muscle rigidity, tremor, or changes in blood pressure. Citalopram should not be taken with an MAOI, and an appropriate buffer period is required when switching between these medicines.

Things to consider before Celexa consumption

Before starting Celexa, patients should discuss the following with their healthcare professional:

• Heart rhythm problems
• Electrolyte abnormalities
• Liver disease
• Kidney disease
• Bipolar disorder
• Seizures
• Bleeding problems
• Glaucoma
• Pregnancy and breastfeeding
• Other medicines
• Suicidal thoughts

It is important to inform the respective healthcare professional regarding any allergy, history of nay major diseases, diseases related to heart disease, long QT syndrome, slow heart rate, electrolyte imbalances (low potassium or magnesium), liver problems, or bipolar disorder, to avoid complications. Inform doctor if you take monoamine oxidase inhibitors or used them in the past 14 days. Pregnant or breastfeeding patients should consult and inform the doctor before stating the treatment, as it may affect the baby.

Application/Consumption

Celexa is taken orally once daily, either in the morning or evening, with or without food. The medicine should be taken consistently according to the prescribed schedule. The dose should not be increased or decreased independently because citalopram exposure and safety can be affected by age, liver function, drug interactions, and other individual factors.

Antidepressant benefits may take several weeks to become fully apparent. Patients should continue taking the medication as prescribed even if improvement is not immediate. If treatment needs to be discontinued, the dose should generally be reduced gradually rather than stopped abruptly because discontinuation reactions can occur. These may include dizziness, sensory disturbances, sleep problems, anxiety, irritability, headache, nausea, and flu-like symptoms.

Citalopram can cause drowsiness or, in some patients, insomnia. Patients should be cautious when driving or operating machinery until they know how the medicine affects them. Alcohol and other medicines that affect the central nervous system may increase certain adverse effects.

Dosing information

For adults with major depressive disorder, the recommended initial dose of citalopram is generally 20 mg once daily. Depending on response and tolerability, the dose may be increased to a maximum of 40 mg once daily, with dosage increases made no more frequently than once per week. Doses above 40 mg per day are not recommended because of the risk of QT prolongation.

For patients older than 60 years, the maximum recommended dose is generally 20 mg per day.

Uses

Celexa is used for:

• Major depressive disorder in adults.
• Management of depressive symptoms associated with major depressive disorder.
• Long-term maintenance treatment in adults who respond to citalopram, when continued antidepressant therapy is considered appropriate.

Citalopram may sometimes be prescribed for conditions other than its FDA-approved indication, but such use should be determined by a qualified healthcare professional. Celexa is not FDA-approved for pediatric patients.

Celexa side effects

Common side effects of citalopram include nausea, dry mouth, increased sweating, sleepiness, insomnia, fatigue, headache, dizziness, and changes in appetite or weight. Some patients may also experience diarrhea or constipation. Sexual side effects, including reduced libido, delayed orgasm, or difficulty achieving orgasm, can occur with SSRIs.

Citalopram can affect the electrical activity of the heart. QT prolongation is dose-dependent, making adherence to the recommended maximum dose particularly important. Patients who experience palpitations, fainting, severe dizziness, or unexplained episodes of loss of consciousness should receive prompt medical evaluation. FDA labeling specifically identifies QT prolongation and Torsade de Pointes as important risks.

Another serious adverse effect is serotonin syndrome, particularly when citalopram is combined with other medicines that increase serotonin. Symptoms may include agitation, hallucinations, sweating, fever, rapid heartbeat, changes in blood pressure, tremor, muscle rigidity, loss of coordination, nausea, vomiting, or diarrhea. Immediate medical evaluation is appropriate if severe symptoms develop.

SSRIs including citalopram may also increase the risk of abnormal bleeding, particularly when taken with aspirin, NSAIDs, warfarin, other anticoagulants, or antiplatelet medicines. Patients should report unusual bruising, prolonged bleeding, blood in the stool, or other unexplained bleeding.

Citalopram may cause hyponatremia, or low blood sodium, particularly in older adults or people taking diuretics. Symptoms can include headache, confusion, weakness, difficulty concentrating, memory changes, or unsteadiness. Severe hyponatremia can result in seizures or other serious complications.

Like other antidepressants, citalopram can trigger mania or hypomania in susceptible individuals with bipolar disorder. Screening for bipolar disorder before starting treatment is therefore recommended in FDA labeling.

Citalopram also interacts with several medicines. Combining it with MAOIs is contraindicated because of the risk of serious reactions. Other serotonergic medicines can increase serotonin syndrome risk, while medicines that prolong the QT interval can further increase cardiac risk. CYP2C19 inhibitors can increase citalopram concentrations and may require the maximum dose to be limited.

Patients should also be monitored for changes in mood and suicidal thinking, especially when starting treatment or changing the dose. Although these concerns are particularly emphasized for younger patients, FDA labeling recommends monitoring antidepressant-treated patients for clinical worsening and emergence of suicidal thoughts or behaviors.