STELAZINE vs TRILAFON

Independent side-by-side comparison.

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

Possible drug interaction. STELAZINE and TRILAFON 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	STELAZINE	TRILAFON
Rating	70/100	New
Pharmacy pays	~$22.02 /30	~$5.68 /30
Type	RX	RX
Active ingredient	TRIFLUOPERAZINE HYDROCHLORIDE	PERPHENAZINE
Manufacturer	Glaxosmithkline	Schering
Dosage forms	Tablet	Tablet
Drug class	Phenothiazine	Phenothiazine
Boxed warning	None	None
Treats	Anxiety Disorders, Psychotic Disorders, Schizophrenia	Tourette Syndrome, Huntington Disease, Nausea

stelazine trilafon

Rating

70/100

New

Pharmacy pays

~$22.02 /30

~$5.68 /30

Type

Active ingredient

TRIFLUOPERAZINE HYDROCHLORIDE

PERPHENAZINE

Manufacturer

Glaxosmithkline

Schering

Dosage forms

Tablet

Drug class

Phenothiazine

Boxed warning

None

Treats

Anxiety Disorders, Psychotic Disorders, Schizophrenia

Tourette Syndrome, Huntington Disease, Nausea

Frequently asked questions

Which is cheaper, Stelazine or Trilafon?

Trilafon costs pharmacies less to acquire — about $5.68 vs $22.02 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 Stelazine and Trilafon?

Stelazine contains Trifluoperazine Hydrochloride, while Trilafon contains Perphenazine — 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.