DYNAPEN vs PENICILLIN G SODIUM

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. DYNAPEN and PENICILLIN G 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	DYNAPEN	PENICILLIN G SODIUM
Rating	New	72/100
Pharmacy pays	~$23.75 /30	—
Type	RX	RX
Active ingredient	DICLOXACILLIN SODIUM	PENICILLIN G SODIUM
Manufacturer	Apothecon	Bristol Myers Squibb
Dosage forms	—	Injectable
Drug class	Penicillin-Class Antibacterial	Penicillin-Class Antibacterial
Boxed warning	None	None
Treats	Cellulitis, Osteomyelitis, Postoperative Complications	Actinomycosis, Anthrax, Botulism

dynapen penicillin g sodium

Rating

New

72/100

Pharmacy pays

~$23.75 /30

—

Type

Active ingredient

DICLOXACILLIN SODIUM

PENICILLIN G SODIUM

Manufacturer

Apothecon

Bristol Myers Squibb

Dosage forms

—

Injectable

Drug class

Penicillin-Class Antibacterial

Boxed warning

None

Treats

Cellulitis, Osteomyelitis, Postoperative Complications

Actinomycosis, Anthrax, Botulism

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Frequently asked questions

What is the difference between Dynapen and Penicillin G Sodium?

Dynapen contains Dicloxacillin Sodium, while Penicillin G Sodium contains Penicillin G 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.