NIACIN vs THIAMINE HYDROCHLORIDE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Possible drug interaction. NIACIN and THIAMINE HYDROCHLORIDE 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	NIACIN	THIAMINE HYDROCHLORIDE
Rating	New	68/100
Pharmacy pays	~$7.53 /30	$2.42 /mL
Type	RX	RX
Active ingredient	NIACIN	THIAMINE HYDROCHLORIDE
Manufacturer	Barr	Fresenius Kabi USA
Dosage forms	Tablet, Tablet, extended release	Injectable
Drug class	Nicotinic Acid	—
Boxed warning	None	None
Half-life	about 20 to 45 minutes	—
Treats	Hypercholesterolemia, Pellagra, Hypertriglyceridemia	Beriberi, Pellagra, Thiamine Deficiency

niacin thiamine hydrochloride

Rating

New

68/100

Pharmacy pays

~$7.53 /30

$2.42 /mL

Type

Active ingredient

NIACIN

THIAMINE HYDROCHLORIDE

Manufacturer

Barr

Fresenius Kabi USA

Dosage forms

Tablet, Tablet, extended release

Injectable

Drug class

Nicotinic Acid

—

Boxed warning

None

Half-life

about 20 to 45 minutes

—

Treats

Hypercholesterolemia, Pellagra, Hypertriglyceridemia

Beriberi, Pellagra, Thiamine Deficiency

Frequently asked questions

What is the difference between Niacin and Thiamine Hydrochloride?

Niacin contains Niacin, while Thiamine Hydrochloride contains Thiamine 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.