LANIAZID vs RIFADIN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. LANIAZID and RIFADIN 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	LANIAZID	RIFADIN
Rating	New	70/100
Pharmacy pays	~$96.88 /30	~$20.59 /30
Type	RX	RX
Active ingredient	ISONIAZID	RIFAMPIN
Manufacturer	Chartwell Molecular	Sanofi Aventis US
Dosage forms	Tablet	Injectable
Drug class	Antimycobacterial	Rifamycin Antibacterial
Boxed warning	Boxed warning	None
Treats	Tuberculosis	Brucellosis, Haemophilus Infections, Legionnaires' Disease

laniazid rifadin

Rating

New

70/100

Pharmacy pays

~$96.88 /30

~$20.59 /30

Type

Active ingredient

ISONIAZID

RIFAMPIN

Manufacturer

Chartwell Molecular

Sanofi Aventis US

Dosage forms

Tablet

Injectable

Drug class

Antimycobacterial

Rifamycin Antibacterial

Boxed warning

None

Treats

Tuberculosis

Brucellosis, Haemophilus Infections, Legionnaires' Disease

Frequently asked questions

Which is cheaper, Laniazid or Rifadin?

Rifadin costs pharmacies less to acquire — about $20.59 vs $96.88 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Laniazid and Rifadin?

Laniazid contains Isoniazid, while Rifadin contains Rifampin — 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.