Prochlorperazine maleate is an antipsychotic medication used to treat schizophrenia and other psychotic disorders [1]. It is also used to control severe nausea and vomiting [2].
How does prochlorperazine maleate work?
Prochlorperazine maleate is a phenothiazine derivative that acts by blocking dopamine receptors in the brain [3]. Dopamine is a neurotransmitter that plays a role in mood, behavior, and motor control. By blocking dopamine receptors, prochlorperazine maleate can reduce the symptoms of psychosis and alleviate nausea and vomiting [4].
What are the common side effects of prochlorperazine maleate?
Common side effects of prochlorperazine maleate include drowsiness, dizziness, blurred vision, dry mouth, and constipation [5]. More serious side effects can occur, such as movement disorders (e.g., tardive dyskinesia), neuroleptic malignant syndrome, and a drop in blood pressure [6].
How is prochlorperazine maleate administered?
Prochlorperazine maleate is available as an oral tablet, a suppository, and an injectable solution [7]. The typical dosage varies depending on the condition being treated and the patient's response [8].
What is the typical dosage for prochlorperazine maleate 5mg?
For adults with schizophrenia, the initial dose is often 5 to 10 mg two to four times daily, with the dose increased as needed [9]. For nausea and vomiting, 5 to 10 mg is typically given every four to six hours as needed [10].
When does the patent for prochlorperazine maleate expire?
Prochlorperazine maleate is an older medication, and its original patents have long since expired [11]. This means generic versions of the drug are available, which generally leads to lower costs.
Are there alternatives to prochlorperazine maleate?
Yes, there are several alternative medications available for schizophrenia and psychotic disorders, including other antipsychotics like haloperidol and risperidone [12]. For nausea and vomiting, alternatives include ondansetron, promethazine, and scopolamine [13].
What is the regulatory status of prochlorperazine maleate?
Prochlorperazine maleate is approved by the U.S. Food and Drug Administration (FDA) for its indicated uses [1].
Sources:
[1] https://www.nhs.uk/medicines/prochlorperazine/
[2] https://www.webmd.com/drugs/2/drug-5668/prochlorperazine-oral/details
[3] https://www.ncbi.nlm.nih.gov/books/NBK542127/
[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4330940/
[5] https://www.drugs.com/sfx/prochlorperazine-maleate-side-effects.html
[6] https://www.nhs.uk/medicines/prochlorperazine/prochlorperazine-side-effects/
[7] https://www.rxlist.com/prochlorperazine-maleate-drug.htm
[8] https://www.drugs.com/dosage/prochlorperazine-maleate.html
[9] https://www.webmd.com/drugs/2/drug-5668/prochlorperazine-oral/details
[10] https://www.nhs.uk/medicines/prochlorperazine/
[11] https://drugpatentwatch.com/
[12] https://www.mayoclinic.org/diseases-conditions/schizophrenia/diagnosis-treatment/drc-20354451
[13] https://www.nhs.uk/conditions/vomiting/treatment/