AREDIA vs FOSAMAX

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. AREDIA and FOSAMAX 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	AREDIA	FOSAMAX
Rating	70/100	70/100
Pharmacy pays	—	~$7.76 /30
Type	RX	RX
Active ingredient	PAMIDRONATE DISODIUM	ALENDRONATE SODIUM
Manufacturer	Novartis	Merck
Dosage forms	Injectable	Tablet
Drug class	Bisphosphonate	Bisphosphonate
Boxed warning	None	None
Treats	Hypercalcemia, Osteolysis, Extramammary Paget Disease	Extramammary Paget Disease, Postmenopausal Osteoporosis

aredia fosamax

Rating

70/100

Pharmacy pays

—

~$7.76 /30

Type

Active ingredient

PAMIDRONATE DISODIUM

ALENDRONATE SODIUM

Manufacturer

Novartis

Merck

Dosage forms

Injectable

Tablet

Drug class

Bisphosphonate

Boxed warning

None

Treats

Hypercalcemia, Osteolysis, Extramammary Paget Disease

Extramammary Paget Disease, Postmenopausal Osteoporosis

Frequently asked questions

Which is better-rated, Aredia or Fosamax?

Aredia and Fosamax are tied at 3.5 out of 5 by our independent rating.

What is the difference between Aredia and Fosamax?

Aredia contains Pamidronate Disodium, while Fosamax contains Alendronate 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.