ALOPRIM vs ZYLOPRIM

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 17, 2026·How we rate

Possible drug interaction. ALOPRIM and ZYLOPRIM 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	ALOPRIM	ZYLOPRIM
Rating	64/100	New
Pharmacy pays	~$1.66 /30	~$1.66 /30
Type	RX	RX
Active ingredient	ALLOPURINOL SODIUM	ALLOPURINOL
Manufacturer	Mylan	Casper Pharma LLC
Dosage forms	Injectable	Tablet
Drug class	Xanthine Oxidase Inhibitor	Xanthine Oxidase Inhibitor
Boxed warning	None	None
Half-life	about 1 to 2 hours (parent drug)	about 1 to 2 hours (parent drug)
Treats	Gout	Gout

aloprim zyloprim

Rating

64/100

New

Pharmacy pays

~$1.66 /30

Type

Active ingredient

ALLOPURINOL SODIUM

ALLOPURINOL

Manufacturer

Mylan

Casper Pharma LLC

Dosage forms

Injectable

Tablet

Drug class

Xanthine Oxidase Inhibitor

Boxed warning

None

Half-life

about 1 to 2 hours (parent drug)

Treats

Gout

Frequently asked questions

Which is cheaper, Aloprim or Zyloprim?

Pharmacies pay about the same to acquire either one — roughly $1.66 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 Aloprim and Zyloprim?

Aloprim contains Allopurinol Sodium, while Zyloprim contains Allopurinol — 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.