PERPHENAZINE vs VONTROL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 20, 2026·How we rate

Possible drug interaction. PERPHENAZINE and VONTROL 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	PERPHENAZINE	VONTROL
Rating	68/100	70/100
Pharmacy pays	~$5.68 /30	—
Type	RX	RX
Active ingredient	PERPHENAZINE	DIPHENIDOL HYDROCHLORIDE
Manufacturer	Sandoz	Glaxosmithkline
Dosage forms	Tablet	Tablet
Drug class	Phenothiazine	—
Boxed warning	Boxed warning	None
Treats	Tourette Syndrome, Huntington Disease, Nausea	Nausea, Vertigo, Vomiting

perphenazine vontrol

Rating

68/100

70/100

Pharmacy pays

~$5.68 /30

—

Type

Active ingredient

PERPHENAZINE

DIPHENIDOL HYDROCHLORIDE

Manufacturer

Sandoz

Glaxosmithkline

Dosage forms

Tablet

Drug class

Phenothiazine

—

Boxed warning

None

Treats

Tourette Syndrome, Huntington Disease, Nausea

Nausea, Vertigo, Vomiting

Frequently asked questions

Which is better-rated, Perphenazine or Vontrol?

By our independent rating, Vontrol scores higher — 3.5 vs 3.4 out of 5 for Perphenazine. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Perphenazine and Vontrol?

Perphenazine contains Perphenazine, while Vontrol contains Diphenidol 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.