DYCILL vs DYNAPEN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 12, 2026·How we rate

Attribute	DYCILL	DYNAPEN
Rating	70/100	New
Pharmacy pays	~$23.69 /30	~$23.69 /30
Type	RX	RX
Active ingredient	DICLOXACILLIN SODIUM	DICLOXACILLIN SODIUM
Manufacturer	Glaxosmithkline	Apothecon
Dosage forms	Capsule	—
Drug class	Penicillin-Class Antibacterial	Penicillin-Class Antibacterial
Boxed warning	None	None
Treats	Cellulitis, Osteomyelitis, Postoperative Complications	Cellulitis, Osteomyelitis, Postoperative Complications

dycill dynapen

Rating

70/100

New

Pharmacy pays

~$23.69 /30

Type

Active ingredient

DICLOXACILLIN SODIUM

Manufacturer

Glaxosmithkline

Apothecon

Dosage forms

Capsule

—

Drug class

Penicillin-Class Antibacterial

Boxed warning

None

Treats

Cellulitis, Osteomyelitis, Postoperative Complications

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Frequently asked questions

Which is cheaper, Dycill or Dynapen?

Pharmacies pay about the same to acquire either one — roughly $23.69 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 Dycill and Dynapen?

Both Dycill and Dynapen share the active ingredient Dicloxacillin 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.