Key facts about Fosamax
What is Fosamax?
Fosamax is the brand name for alendronate sodium and is available as an oral tablet and solution.
What dosages is Fosamax available in?
Fosamax is available as a 5 mg, 10 mg, 35 mg, 40 mg and 70 mg oral tablet and a 70 mg/75 ml oral solution,
What is Fosamax used for?
Fosamax is a bisphosphonate and can be used for the prevention and treatment of osteoporosis in females, the treatment of osteoporosis in males, and Paget’s disease.
How does Fosamax work?
Fosamax is a bisphosphonate. It attaches to bones to prevent bone breakdown, lowering the risk of fractures.
How do I take Fosamax?
Fosamax is typically taken by mouth and dosed 35 mg or 75 mg once a week or 5 mg to 40 mg every day.
Is it safe for me to take Fosamax?
Fosamax is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have abnormalities of the esophagus which delay emptying such as stricture or achalasia.
Fosamax Common Side Effects
Common side effects of Fosamax include:
- Stomach pain
- Muscle, bone, and joint pain
- Heartburn or indigestion
- Nausea
- Passing gas
Fosamax Serious Side Effects
Serious side effects are rare with Fosamax. Contact your healthcare provider immediately if you experience any of the following.
- Allergic reactions: trouble breathing, hives, swelling of your face, lips, tongue, or throat
- Low calcium levels
Effects of other drugs, drug classes and over-the-counter products on Fosamax
The following medications may interact with Fosamax:
- Calcium supplements, antacids, or oral medications containing multivalent cations interfere with absorption of alendronate
- Aspirin and nonsteroidal anti-inflammatory drug use may worsen GI irritation therefore use with caution
Who makes Fosamax?
Merck & Co., Inc.
Is Fosamax safe in pregnancy?
Fosamax use has not been studied in pregnant women. Fosamax should be used during pregnancy only if the
potential benefit justifies the potential risk to the mother and fetus.













