NAFCILLIN SODIUM vs OXACILLIN SODIUM

Independent side-by-side comparison.

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

Possible drug interaction. NAFCILLIN SODIUM and OXACILLIN SODIUM 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	NAFCILLIN SODIUM	OXACILLIN SODIUM
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	NAFCILLIN SODIUM	OXACILLIN SODIUM
Manufacturer	Fresenius	Piramal Critical
Dosage forms	Injectable	Injectable
Drug class	Penicillin-Class Antibacterial	Penicillin-Class Antibacterial
Boxed warning	None	None
Treats	Cellulitis, Bacterial Endocarditis, Osteomyelitis	Cellulitis, Bacterial Endocarditis, Osteomyelitis

nafcillin sodium oxacillin sodium

Rating

New

Pharmacy pays

—

Type

Active ingredient

NAFCILLIN SODIUM

OXACILLIN SODIUM

Manufacturer

Fresenius

Piramal Critical

Dosage forms

Injectable

Drug class

Penicillin-Class Antibacterial

Boxed warning

None

Treats

Cellulitis, Bacterial Endocarditis, Osteomyelitis

Frequently asked questions

What is the difference between Nafcillin Sodium and Oxacillin Sodium?

Nafcillin Sodium contains Nafcillin Sodium, while Oxacillin Sodium contains Oxacillin Sodium — 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.