PROCHLORPERAZINE EDISYLATE vs PROMETHEGAN

Independent side-by-side comparison.

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

Possible drug interaction. PROCHLORPERAZINE EDISYLATE and PROMETHEGAN 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 EDISYLATE	PROMETHEGAN
Rating	New	70/100
Pharmacy pays	—	~$1.53 /30
Type	RX	RX
Active ingredient	PROCHLORPERAZINE EDISYLATE	PROMETHAZINE HYDROCHLORIDE
Manufacturer	Caplin	Cosette
Dosage forms	Injectable	Suppository
Drug class	Phenothiazine	Phenothiazine
Boxed warning	Boxed warning	Boxed warning
Half-life	—	about 9 to 16 hours
Treats	Anxiety Disorders, Dementia, Nausea	Anaphylaxis, Allergic Conjunctivitis, Motion Sickness

prochlorperazine edisylate promethegan

Rating

New

70/100

Pharmacy pays

—

~$1.53 /30

Type

Active ingredient

PROCHLORPERAZINE EDISYLATE

PROMETHAZINE HYDROCHLORIDE

Manufacturer

Caplin

Cosette

Dosage forms

Injectable

Suppository

Drug class

Phenothiazine

Boxed warning

Half-life

—

about 9 to 16 hours

Treats

Anxiety Disorders, Dementia, Nausea

Anaphylaxis, Allergic Conjunctivitis, Motion Sickness

Frequently asked questions

What is the difference between Prochlorperazine Edisylate and Promethegan?

Prochlorperazine Edisylate contains Prochlorperazine Edisylate, while Promethegan contains Promethazine 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.