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RIFADIN vs RIFAMPIN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 17, 2026·How we rate
rifadinrifampin

Rating

70/100
66/100

Pharmacy pays

~$20.59 /30
~$20.59 /30

Type

RX
RX

Active ingredient

RIFAMPIN
RIFAMPIN

Manufacturer

Sanofi Aventis US
Fresenius Kabi USA

Dosage forms

Injectable
Capsule

Drug class

Rifamycin Antibacterial
Rifamycin Antibacterial

Boxed warning

None
None

Treats

Brucellosis, Haemophilus Infections, Legionnaires' Disease
Brucellosis, Haemophilus Infections, Legionnaires' Disease

Frequently asked questions

Which is better-rated, Rifadin or Rifampin?

By our independent rating, Rifadin scores higher — 3.5 vs 3.3 out of 5 for Rifampin. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Rifadin or Rifampin?

Pharmacies pay about the same to acquire either one — roughly $20.59 for a 30-count supply, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Rifadin and Rifampin?

Both Rifadin and Rifampin share the active ingredient Rifampin.

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.