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Prochlorperazine

Atypical Antipsychotic · Antipsychotic; Antiemetic

Atypical AntipsychoticAntipsychotic; AntiemeticATC N05AB04
CDSCO approvedSchedule HATC N05AB04
EXCRETION
not curated
INTERACTIONS
12 major
SEVERE in our sources
PREGNANCY
not curated
Top interactionssee all 12
  • Aminolevulinic AcidSevereDatabaseDDInter
  • AmiodaroneSevereDatabaseDDInter
  • AmisulprideSevereDatabaseDDInter
  • AnagrelideSevereDatabaseDDInter

Mechanism

First-generation antipsychotic drugs act predominantly by blocking dopamine D2 receptors in the brain. They are not selective for any of the four dopamine pathways in the brain.

Indications

Bipolar disorder and maniaPsychoses and schizophreniaNausea and vomitingGeneral-purpose antinauseant and antiemeticMotion sicknessNausea and vomiting of GI originviolent vertigoviolent vomitingvertigo associated vomitingchemotherapy induced nausea and vomiting (CINV, to some extent)postoperative nausea and vomiting (PONV)drug-induced vomitingdisease-induced vomiting (gastroenteritis, uraemia, liver disease, migraine)malignancy associated and mild chemotherapy-induced vomitingradiation sickness vomitingmorning sickness (only in hyperemesis gravidarum)Prevention of chemotherapy-induced nausea and vomiting

Dosing

Adult
equivalent doses of morphine p. 484 and diamorphine hydrochloride. Mixing and compatibility The general principle that injections should be given into separate sites (and should not be mixed) does not apply to the use of syringe drivers in palliative care. Provided that there is evidence of compatibility, selected injections can be mixed in syringe drivers.…

Contraindications

  • Subcutaneous infusion (due to skin reactions at the injection site)
  • Elderly patients with dementia-related psychosis (increased mortality)
  • should not be administered until the cause of vomiting has been diagnosed

Side effects

Common
Extrapyramidal symptomsElevated prolactinSedative effects (less pronounced than Group 1 phenothiazines)Antimuscarinic effects (less pronounced than Group 1 phenothiazines)Skin reactions at the injection site (if given subcutaneously)DystoniaCardiac effectsHypotension
Serious
  • Extrapyramidal reactions
  • Increased mortality in elderly patients with dementia-related psychosis
  • muscle dystonia
  • extrapyramidal side effects

Drug interactions

Aminolevulinic Acid
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Amiodarone
Severe
Database

Drug interaction classified as: synergy.

Source: DDInter

Amisulpride
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Anagrelide
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Arsenic Trioxide
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Bedaquiline
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Bepridil
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Buprenorphine
Severe
Database

Drug interaction classified as: synergy.

Source: DDInter

Bupropion
Severe
Database

Drug interaction classified as: metabolism.

Source: DDInter

Cabozantinib
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Central Nervous System Depressants (e.g., Opioids, Benzodiazepines, Alcohol, Antihistamines)
Severe
Database

Increased sedation, respiratory depression, hypotension, psychomotor impairment. Risk of falls and accidents.

Avoid concomitant use if possible. If co-administration is necessary, use the lowest effective doses of both drugs, monitor closely for CNS depression, and advise patients against driving or operating machinery.

Ceritinib
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Related guidelines

Other Atypical Antipsychotic drugs

Ask House about Prochlorperazine

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Sources: KD Tripathi 7e, Goodman & Gilman 14e, Harrison 22e, BNF·Verified: 2026-05-13 · House clinical team