Fosamax

Moderate Warnings

Generic: alendronate

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Information reviewed July 24, 2026

Rank #7 in NZ TV Ads
Class: Bisphosphonate

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What is it for?

Fosamax is advertised in New Zealand to treat and prevent osteoporosis in post-menopausal women and men, helping to strengthen bones and reduce the risk of fractures.

Primary Condition

Osteoporosis

How it works

Fosamax belongs to a class called bisphosphonates. It binds to bone surfaces and inhibits osteoclasts (cells that break down bone), allowing bone-forming cells to build stronger bone over time.

Common Side Effects

This is not a complete list of side effects. Always consult with a doctor.

  • Esophageal irritation
  • Stomach pain
  • Jaw bone problems (rare)
  • Thigh bone fractures (rare)
  • Muscle/joint pain

Fosamax FAQs

What is Fosamax used for?

Fosamax (alendronate) is a prescription medication used to treat Osteoporosis. Fosamax is advertised in New Zealand to treat and prevent osteoporosis in post-menopausal women and men, helping to strengthen bones and reduce the risk of fractures.

How does Fosamax work?

Fosamax belongs to a class called bisphosphonates. It binds to bone surfaces and inhibits osteoclasts (cells that break down bone), allowing bone-forming cells to build stronger bone over time.

What are the common side effects of Fosamax?

Commonly reported side effects of Fosamax include Esophageal irritation, Stomach pain, Jaw bone problems (rare), Thigh bone fractures (rare), and Muscle/joint pain. This is not a complete list — tell your doctor or pharmacist about any side effects you experience.

Does Fosamax have any serious warnings?

Fosamax has notable warnings and precautions. Tell your doctor about your medical history and any other medicines or supplements you take before starting Fosamax.

What is the generic name for Fosamax?

The active ingredient in Fosamax is alendronate, which belongs to a class of medicines known as Bisphosphonate.

Who makes Fosamax?

Fosamax is manufactured by Merck. It was first approved in 1995.

How can I save money on Fosamax?

You may be able to lower the cost of Fosamax by using a free pharmacy discount card or by comparing prices across pharmacies before you fill your prescription. Savings vary by pharmacy and location.

Common questions about Fosamax

Quick Facts

Manufacturer

Merck

Year Approved

1995

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