Celexa (citalopram hydrobromide) has been on the market since its initial FDA approval on December 16, 1998 [1].
When Did Celexa's Patent Expire?
The primary patents for citalopram expired around 2003 [2]. This expiration allowed for the introduction of generic versions of the drug.
When Did Generic Celexa Become Available?
Following the patent expiration, generic citalopram became available. The exact date of the first generic launch can vary based on specific patent challenges and regulatory approvals, but it was available in the years following 2003 [2].
How Does Celexa Work?
Celexa is an antidepressant that belongs to a class of drugs called selective serotonin reuptake inhibitors (SSRIs) [1]. It works by increasing the levels of serotonin, a neurotransmitter, in the brain. Serotonin plays a role in mood regulation, and an imbalance is thought to contribute to depression and anxiety [3].
What Conditions Does Celexa Treat?
Celexa is primarily prescribed for the treatment of major depressive disorder in adults [1]. It is also sometimes used off-label for other conditions, such as generalized anxiety disorder or panic disorder, although its primary indication is depression.
What Are the Common Side Effects of Celexa?
Common side effects associated with Celexa use include nausea, insomnia, ejaculatory disorder, fatigue, and increased sweating [1]. These side effects are typically mild and may decrease over time.
Are There Alternatives to Celexa?
Yes, there are several alternative treatments for major depressive disorder, including other SSRIs (like fluoxetine, sertraline, escitalopram), serotonin-norepinephrine reuptake inhibitors (SNRIs), other classes of antidepressants, psychotherapy, and lifestyle changes [3]. Escitalopram (Lexapro) is a closely related SSRI that was developed from citalopram [4].
Who Manufactures Celexa?
The original branded version of Celexa was developed and marketed by Forest Laboratories, which is now part of AbbVie [1][5]. Generic versions are produced by numerous pharmaceutical companies.
Where Can I Find Information on Drug Patents?
Information regarding drug patents, including their expiration dates, can be found on resources like DrugPatentWatch.com [2].
Sources:
1. https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=reportDetail.page&ReportNumber=1378379
2. DrugPatentWatch.com
3. https://www.nhs.uk/medicines/citalopram/
4. https://www.drugpatentwatch.com/drug/lexapro
5. https://www.abbvie.com/