PROCHLORPERAZINE vs THORAZINE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 16, 2026·How we rate

Possible drug interaction. PROCHLORPERAZINE and THORAZINE are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	PROCHLORPERAZINE	THORAZINE
Rating	70/100	70/100
Pharmacy pays	~$5.22 /30	~$12.04 /30
Type	RX	RX
Active ingredient	PROCHLORPERAZINE MALEATE	CHLORPROMAZINE HYDROCHLORIDE
Manufacturer	Watson Labs	Glaxosmithkline
Dosage forms	Suppository, Tablet	Tablet, Capsule, extended release
Drug class	Phenothiazine	Phenothiazine
Boxed warning	None	None
Treats	Anxiety Disorders, Dementia, Nausea	Anxiety Disorders, Child Behavior Disorders, Hiccup

prochlorperazine thorazine

Rating

70/100

Pharmacy pays

~$5.22 /30

~$12.04 /30

Type

Active ingredient

PROCHLORPERAZINE MALEATE

CHLORPROMAZINE HYDROCHLORIDE

Manufacturer

Watson Labs

Glaxosmithkline

Dosage forms

Suppository, Tablet

Tablet, Capsule, extended release

Drug class

Phenothiazine

Boxed warning

None

Treats

Anxiety Disorders, Dementia, Nausea

Anxiety Disorders, Child Behavior Disorders, Hiccup

Frequently asked questions

Which is better-rated, Prochlorperazine or Thorazine?

Prochlorperazine and Thorazine are tied at 3.5 out of 5 by our independent rating.

Which is cheaper, Prochlorperazine or Thorazine?

Prochlorperazine costs pharmacies less to acquire — about $5.22 vs $12.04 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Prochlorperazine and Thorazine?

Prochlorperazine contains Prochlorperazine Maleate, while Thorazine contains Chlorpromazine Hydrochloride — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.