RETIN-A vs SULFONAMIDES DUPLEX

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 7, 2026·How we rate

Possible drug interaction. RETIN-A and SULFONAMIDES DUPLEX 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	RETIN-A	SULFONAMIDES DUPLEX
Rating	74/100	New
Pharmacy pays	$1.05 /g	~$451.98 /30
Type	RX	RX
Active ingredient	TRETINOIN	SULFADIAZINE AND SULFAMERAZINE AND TRISULFAPYRIMIDINES (SULFADIAZINE AND SULFAMETHAZINE)
Manufacturer	Valeant Pharm Intl	Lilly
Dosage forms	Topical	Suspension
Drug class	Retinoid	—
Boxed warning	None	None
Treats	Acne Vulgaris, Facial Dermatoses, Acute Promyelocytic Leukemia	—

retin-a sulfonamides duplex

Rating

74/100

New

Pharmacy pays

$1.05 /g

~$451.98 /30

Type

Active ingredient

TRETINOIN

SULFADIAZINE AND SULFAMERAZINE AND TRISULFAPYRIMIDINES (SULFADIAZINE AND SULFAMETHAZINE)

Manufacturer

Valeant Pharm Intl

Lilly

Dosage forms

Topical

Suspension

Drug class

Retinoid

—

Boxed warning

None

Treats

Acne Vulgaris, Facial Dermatoses, Acute Promyelocytic Leukemia

—

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Frequently asked questions

What is the difference between Retin-A and Sulfonamides Duplex?

Retin-A contains Tretinoin, while Sulfonamides Duplex contains Sulfadiazine and Sulfamerazine and Trisulfapyrimidines (Sulfadiazine and Sulfamethazine) — 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.