LAROTID vs UNIPEN

Independent side-by-side comparison.

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

Possible drug interaction. LAROTID and UNIPEN 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	LAROTID	UNIPEN
Rating	70/100	New
Pharmacy pays	$0.05 /mL	—
Type	RX	RX
Active ingredient	AMOXICILLIN	NAFCILLIN SODIUM
Manufacturer	Glaxosmithkline	Wyeth Ayerst
Dosage forms	—	Injectable
Drug class	Penicillin-Class Antibacterial	Penicillin-Class Antibacterial
Boxed warning	None	None
Half-life	about 1 hour (roughly 61 minutes)	—
Treats	Actinomycosis, Human Bites, Chlamydia Infections	Cellulitis, Bacterial Endocarditis, Osteomyelitis

larotid unipen

Rating

70/100

New

Pharmacy pays

$0.05 /mL

—

Type

Active ingredient

AMOXICILLIN

NAFCILLIN SODIUM

Manufacturer

Glaxosmithkline

Wyeth Ayerst

Dosage forms

—

Injectable

Drug class

Penicillin-Class Antibacterial

Boxed warning

None

Half-life

about 1 hour (roughly 61 minutes)

—

Treats

Actinomycosis, Human Bites, Chlamydia Infections

Cellulitis, Bacterial Endocarditis, Osteomyelitis

Frequently asked questions

What is the difference between Larotid and Unipen?

Larotid contains Amoxicillin, while Unipen contains Nafcillin 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.