Canadian Brand Names of Citalopram
In Canada, the brand names of citalopram include Celexa as the primary brand name product. 1, 2
Overview of Citalopram
Citalopram is a selective serotonin reuptake inhibitor (SSRI) antidepressant with the following characteristics:
- It belongs to a class of drugs that enhance serotonergic neurotransmission through potent and selective inhibition of serotonin reuptake 3
- It has a more specific and selective pharmacological profile compared to other antidepressants in its class 4
- Citalopram has been prescribed to over 30 million patients in more than 70 countries worldwide 5
- It is primarily used for the treatment of major depression, other depressive disorders, and panic disorder 4
Canadian Availability
- Celexa is the original brand name for citalopram in Canada 1, 2
- Generic citalopram is also available in the Canadian market 6
Clinical Considerations
When prescribing citalopram in Canada, healthcare providers should be aware of:
- The recommended therapeutic range for citalopram is 30-130 ng/mL 1
- Standard dosing ranges from 20-60 mg once daily 5, 7
- The elimination half-life of approximately 33 hours allows for once-daily oral administration 3
- Common side effects include nausea, dry mouth, somnolence, insomnia, and increased sweating 5, 7
Important Distinctions Between Brand and Generic
- Some patients may experience symptom relapse when switched from brand name Celexa to generic citalopram 6
- In a case series of anxiety disorder patients, the mean time for re-emergence of symptoms or development of adverse events after switching to generic was 3.4 ± 1.6 weeks 6
- Patients reestablished previous treatment response when switched back to Celexa in a mean time of 3.8 ± 2.6 weeks 6
Cautions and Considerations
- Citalopram, like other SSRIs, may be associated with neonatal drug withdrawal symptoms when used during pregnancy 1
- Symptoms in exposed neonates can include crying, irritability, tremors, poor feeding, sleep disturbance, and other signs that typically resolve within 1-4 weeks 1
- Citalopram has minimal anticholinergic effects compared to tricyclic antidepressants 3
- It is relatively well-tolerated in elderly patients and those with mild to moderate renal and hepatic disease 5