BUCLADIN-S vs PROMETHEGAN

Independent side-by-side comparison.

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

Possible drug interaction. BUCLADIN-S 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	BUCLADIN-S	PROMETHEGAN
Rating	New	70/100
Pharmacy pays	—	~$1.53 /30
Type	RX	RX
Active ingredient	BUCLIZINE HYDROCHLORIDE	PROMETHAZINE HYDROCHLORIDE
Manufacturer	Stuart Pharms	Cosette
Dosage forms	Tablet	Suppository
Drug class	—	Phenothiazine
Boxed warning	None	Boxed warning
Half-life	—	about 9 to 16 hours
Treats	Nausea, Vertigo, Vomiting	Anaphylaxis, Allergic Conjunctivitis, Motion Sickness

bucladin-s promethegan

Rating

New

70/100

Pharmacy pays

—

~$1.53 /30

Type

Active ingredient

BUCLIZINE HYDROCHLORIDE

PROMETHAZINE HYDROCHLORIDE

Manufacturer

Stuart Pharms

Cosette

Dosage forms

Tablet

Suppository

Drug class

—

Phenothiazine

Boxed warning

None

Boxed warning

Half-life

—

about 9 to 16 hours

Treats

Nausea, Vertigo, Vomiting

Anaphylaxis, Allergic Conjunctivitis, Motion Sickness

Frequently asked questions

What is the difference between Bucladin-S and Promethegan?

Bucladin-S contains Buclizine Hydrochloride, 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.