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Two medicines, side by side

Chlorpromazine vs haloperidol

Chlorpromazine and haloperidol are both labeled for schizophrenia. Drugs@FDA records approvals of chlorpromazine since 1957 and of haloperidol since 1967. Pharmacies paid $0.552 per chlorpromazine 100 mg tablet and $15.60 per mL (Haloperidol dec 100 mg/mL vial) (NADAC, October 7, 2026). In FDA's classes, chlorpromazine is a phenothiazine and haloperidol a typical antipsychotic.

Check it at the source: the chlorpromazine FDA label on DailyMed (effective May 12, 2026); the haloperidol FDA label on DailyMed (effective April 23, 2026).

Highlights of the chlorpromazine record

Chlorpromazine (Thorazine) · label of May 12, 2026

Boxed warning

Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients.

Used for

From the label: indications

For the management of manifestations of psychotic disorders. For the treatment of schizophrenia. To control nausea and vomiting. For relief of restlessness and apprehension before surgery. For acute intermittent porphyria. As an adjunct in the treatment of tetanus. To control the manifestations of the manic type of manic-depressive illness. For relief of intractable hiccups. […]

On the market

Earliest approval on file
September 18, 1957
Generic labelers
33 labelers
Pharmacy cost
$0.552 per tablet

Supply and safety

Shortage
No current entry
Recalls
25

Highlights of the haloperidol record

Haloperidol (Haldol) · label of April 23, 2026

Boxed warning

Increased Mortality in Elderly Patients with Dementia-Related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients.

Used for

From the label: indications

Haloperidol tablets are indicated for use in the management of manifestations of psychotic disorders. Haloperidol tablets are indicated for the control of tics and vocal utterances of Tourette’s Disorder in children and adults. Haloperidol tablets are effective for the treatment of severe behavior problems in children of combative, explosive hyperexcitability (which cannot be accounted for by immediate provocation). […]

On the market

Earliest approval on file
April 12, 1967
Generic labelers
41 labelers
Pharmacy cost
$15.60 per mL

Supply and safety

Shortage
A presentation being discontinued
Recalls
18

Source: FDA drug labels via openFDA (Chlorpromazine label of May 12, 2026, Haloperidol label of April 23, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do chlorpromazine and haloperidol differ on the record?

In FDA's classes, chlorpromazine is a phenothiazine and haloperidol a typical antipsychotic.

Both labels carry a boxed warning; the records quote them.

Generics: chlorpromazine since 1972; haloperidol since 1986 (Drugs@FDA).

ChlorpromazineHaloperidol
Labeled forSchizophrenia, Nausea and vomitingSchizophrenia
Pharmacologic classPhenothiazineTypical Antipsychotic
How it works (label)n/an/a
Half-life (label)n/an/a
Earliest approval on file (Drugs@FDA)September 18, 1957April 12, 1967
First generic approvedMarch 16, 1972June 10, 1986
Generic labelers (NDC)33 labelers41 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.552 per tablet (Chlorpromazine 100 mg tablet)$15.60 per mL (Haloperidol dec 100 mg/mL vial)
12-month price change-27%no change
Boxed warningYesYes
Shortage nowNo current entryA presentation being discontinued
Recalls recorded2518
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)7,09826,054
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

Do their labels mention each other?

Haloperidol label, drug interactions

CYP2D6 inhibitors – chlorpromazine; promethazine; quinidine; paroxetine, sertraline, venlafaxine.

Source: FDA drug labels via openFDA

What next?

Alternatives to chlorpromazine
every medicine labeled for the same conditions