Fosamax Dosage

Generic name: alendronate sodium
Dosage form: tablet

The information at Drugs.com is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.

Although alendronate tablets 5 mg, 10 mg, 35 mg, and 40 mg are available in the marketplace, FOSAMAX is no longer marketed in the 5 mg, 10 mg, 35 mg, and 40 mg strengths.

‚ÄčAlthough an oral solution of alendronate may be available in the marketplace, FOSAMAX oral solution is no longer marketed.

Treatment of Osteoporosis in Postmenopausal Women

The recommended dosage is:

  • one 70 mg tablet once weekly
          or
  • one bottle of 70 mg oral solution once weekly
          or
  • one 10 mg tablet once daily

Prevention of Osteoporosis in Postmenopausal Women

The recommended dosage is:

  • one 35 mg tablet once weekly
          or
  • one 5 mg tablet once daily

Treatment to Increase Bone Mass in Men with Osteoporosis

The recommended dosage is:

  • one 70 mg tablet once weekly
          or
  • one bottle of 70 mg oral solution once weekly
          or
  • one 10 mg tablet once daily

Treatment of Glucocorticoid-Induced Osteoporosis

The recommended dosage is one 5 mg tablet once daily, except for postmenopausal women not receiving estrogen, for whom the recommended dosage is one 10 mg tablet once daily.

Treatment of Paget's Disease of Bone

The recommended treatment regimen is 40 mg once a day for six months.

Re-treatment of Paget's Disease

Re-treatment with FOSAMAX may be considered, following a six-month post-treatment evaluation period in patients who have relapsed, based on increases in serum alkaline phosphatase, which should be measured periodically. Re-treatment may also be considered in those who failed to normalize their serum alkaline phosphatase.

Important Administration Instructions

Instruct patients to do the following:

  • Take FOSAMAX at least one-half hour before the first food, beverage, or medication of the day with plain water only [see Patient Counseling Information (17.2)]. Other beverages (including mineral water), food, and some medications are likely to reduce the absorption of FOSAMAX [see Drug Interactions (7.1)]. Waiting less than 30 minutes, or taking FOSAMAX with food, beverages (other than plain water) or other medications will lessen the effect of FOSAMAX by decreasing its absorption into the body.
  • Take FOSAMAX upon arising for the day. To facilitate delivery to the stomach and thus reduce the potential for esophageal irritation, a FOSAMAX tablet should be swallowed with a full glass of water (6-8 ounces). To facilitate gastric emptying FOSAMAX oral solution should be followed by at least 2 ounces (a quarter of a cup) of water. Patients should not lie down for at least 30 minutes and until after their first food of the day. FOSAMAX should not be taken at bedtime or before arising for the day. Failure to follow these instructions may increase the risk of esophageal adverse experiences [see Warnings and Precautions (5.1) and Patient Counseling Information (17.2)].

Recommendations for Calcium and Vitamin D Supplementation

Instruct patients to take supplemental calcium if dietary intake is inadequate [see Warnings and Precautions (5.2)]. Patients at increased risk for vitamin D insufficiency (e.g., over the age of 70 years, nursing home-bound, or chronically ill) may need vitamin D supplementation. Patients with gastrointestinal malabsorption syndromes may require higher doses of vitamin D supplementation and measurement of 25-hydroxyvitamin D should be considered.

Patients treated with glucocorticoids should receive adequate amounts of calcium and vitamin D.

Administration Instructions for Missed Doses

If a once-weekly dose of FOSAMAX is missed, instruct patients to take one dose on the morning after they remember. They should not take two doses on the same day but should return to taking one dose once a week, as originally scheduled on their chosen day.

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