Chlorpromazine was introduced in 1954 [1].
What is Chlorpromazine used for?
Chlorpromazine is an antipsychotic medication primarily used to treat psychotic disorders such as schizophrenia [2]. It is also used to manage symptoms of manic episodes in bipolar disorder and agitation [2]. Additionally, it can be employed for nausea and vomiting, and as a preoperative sedative [2].
How does Chlorpromazine work?
Chlorpromazine functions by blocking dopamine D2 receptors in the brain [3]. It also affects other neurotransmitter systems, including serotonin, histamine, acetylcholine, and adrenergic receptors, contributing to its broad range of therapeutic and side effects [3][4].
When does Chlorpromazine's patent expire?
The original patents for chlorpromazine have long expired, as it was introduced in 1954 [1]. DrugPatentWatch.com tracks patent information for many medications, but for older drugs like chlorpromazine, patent exclusivity is no longer a factor [5].
Are there other medications like Chlorpromazine?
Yes, other antipsychotic medications exist, categorized into first-generation (typical) and second-generation (atypical) antipsychotics [6]. While chlorpromazine is a first-generation antipsychotic, newer drugs with different receptor binding profiles and potentially fewer side effects are also available [6].
What are the side effects of Chlorpromazine?
Common side effects include drowsiness, dizziness, dry mouth, blurred vision, and constipation [2]. More serious side effects can involve movement disorders like tardive dyskinesia, a significant drop in blood pressure upon standing (orthostatic hypotension), and a rare but potentially fatal condition called neuroleptic malignant syndrome [2][4]. Patients should consult their healthcare provider for a comprehensive list of side effects.
How is Chlorpromazine administered?
Chlorpromazine is available in oral forms (tablets, syrup), as an injectable solution, and in rectal suppositories [2].
What is the history of Chlorpromazine development?
Chlorpromazine, marketed as Thorazine in the United States, was the first antipsychotic drug to be developed [1][7]. Its introduction revolutionized the treatment of mental illness, enabling many individuals to be treated outside of psychiatric institutions [7].
Sources:
[1] https://www.drugpatentwatch.com/
[2] https://medlineplus.gov/druginfo/meds/a682074.html
[3] https://www.ncbi.nlm.nih.gov/books/NBK519457/
[4] https://www.nhs.uk/medicines/chlorpromazine/
[5] https://www.drugpatentwatch.com/
[6] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3723526/
[7] https://www.bps.org.uk/psychology-public/are-you-researcher/research-methods/research-methods-psychology/psychology-history/psychology-history-chlorpromazine