NAFCILLIN SODIUM vs UNIPEN

Independent side-by-side comparison.

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

Attribute	NAFCILLIN SODIUM	UNIPEN
Rating	New	New
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	NAFCILLIN SODIUM	NAFCILLIN SODIUM
Manufacturer	Fresenius	Wyeth Ayerst
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 unipen

Rating

New

Pharmacy pays

—

Type

Active ingredient

NAFCILLIN SODIUM

Manufacturer

Fresenius

Wyeth Ayerst

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 Unipen?

Both Nafcillin Sodium and Unipen share the active ingredient Nafcillin Sodium.

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.